How can a horrible manager be allowed to keep their job after they made many quit?

Posting what I wrote on my reddit post because it's a lot to write
So for context. I've been at this job since Colombus day. This is technically my first job. Like part time,not a seasonal position. I just wanted some experience and I know chances were it wouldn't be a year long job. When I first got the job as far as I know,the only thing the manager made me sign was a W-2 form. The only thing she told me was that overtime is $22. (If they even did overtime.) No other details.

The job started off really rocky. Every little thing the manager would nitpick about which is weird because she was hypocritical (albeit some people would argue since she's manager she can break her own rules.) No texting on phone. No talking to other employees while there are customers. No drinking in front of customers (that's right,we were not allowed to hydrate in front of customers,even if there were none around. We were required to squat down and drink because drinking in front of customers is rude according to her.) She didn't like you printing out little receipt papers for writing notes on for work like inventory or stock. Said it was a waste but some other people were allowed to do it. Again albeit they weren't high power. She also had what seemed like favoritism/bias because 1/3rd of the workers were the same ethnicity as her and she was always so nice them but to people of other ethnicities she seemed more distant. During the training,the employees trained me and gave me more tips than she did which I guess is the norm. Even though she didn't train me,it felt like a lot of the times she would get mad at me for doing something I didn't know or ask about because she expected me to know what to do. She never told me what to do and what not to do.

There was a day I made a genuine mistake and apologized and she was stone faced. I was tired from no sleep so I was refilling the pennies and put them in the quarters section instead. She saw this and got mad and said why did you put them there. I said I'm sorry it was an honest mistake it won't happen again. And I fixed it up.

She also never told me or the other new employees the store food rule. We have fresh food made here and despite the mass quantity of food being available for customers and us,we would have to check the basement in the fridge to see if there was leftover food from the night before. Now here's the thing. These lunches expired within 4 hours. They put food out maybe 2-3 times throughout the day so I assume it expires within 4 hours each time. One time a customer wanted to buy a lunch at night and the chef said it expired by night/best eaten by night. But any leftover non sold lunches would be stored in the fridge overnight and we HAVE to eat that. If there is none,then we can eat fresh cooked food. We can also buy store food (instant noodle,convenience) food as well but it's not filling.

She also seems to expect you to be 100% perfect after first try. There's an area called bakery where you distribute bread to whoever wants it and what,and make bootleg coffee drinks. I remember during training I had another manager (lower than her) tell me that the training that day for making coffee was "unofficial." Because she expects you to get it all in like 1 day of training and then throw you into the bakery to make drinks for people even if you're not confident.

I remember talking to an employee about her;someone who's worked there for 2 years. She told me I was lucky the time I got hired because the manager was nicer around then (press x to doubt...) she said the manager is passive aggressive. If you do something wrong she will cut your hours without telling you and won't put it back until she wants to aka her punishment system. How she got mad over many things.

Now one more thing. There is another manager who is Japanese. She blamed me on 2 occasions without investigating first,simply because I'm the newest person. There were 2 more other new employees but one only showed up like 2 days in the week and the other one is also Japanese (I suppose bias there.) One incident was that someone at the store scanned a gift card without any money and the person got away with free items. She came to me one day to ask because I was at that station but instead of looking at cameras because there are literally cameras all around. Or looking at my time card,she accuses me. I never even learned how to use the gift card machine so how could I make such a mistake. Two,she didn't check my time card. The person did it at 1:33 PM but my card says I clicked out 1:30 PM. I told her this and said I didn't do anything.

The second incident was that someone lowered the phone volume so when the phone rang you can barely hear it. She came to me and said do you know why it's like this,I said I don't know I didn't touch anything. I was drying and washing food trays and taking out the trash and by the time I came back,the volume was low. Another guy was there but she said it couldn't be him,he knows how to fix the phone/how it works. I said ok but I didn't touch the phone or use it and she said I will see. Like...? It feels like she never believes me.

Now for the final thing that made me snap. A month ago the head manager wrote a note on the calendar that said we cant take any December days off and to "keep our health." Fast forward to today,another coworker tells me she was supposed to follow protocol and ask if we wanted any days off for holidays. She was also supposed to tell me there is no holiday pay which she didn't do. So something popped up NYE and I asked (1 week in advance) can I get the day off I have something popped up. She said she'll try to find cover (from like 2 other people) but if she couldn't isn't still have to show up. We have more than enough people that day to cover all stations and cash registers. I think after she said that something in me snapped and I said I had enough. The other coworker quitting tomorrow after a few months of saving,said that this manager doesn't give a **** about you or your family or your lives. The store is open 24/7 aka everyday. All holidays. There is no holiday pay. No sick pay. No vacation pay. No benefits. So I snapped. She left work. I decided to write a short I quit note on a receipt paper and taped it to the back of her time card. So the first thing she's going to see tomorrow when she clocks in is an informal last second resignation/quitting notice from me.

I know it's unprofessional. And I know its preferred you tell managers 2 weeks ahead of time but after everything that has happened and what the other employees have been through as well,I was finished being complacent. This job was not worth my mental health. It's also a minor job I only worked at for like what,2.5 months? I know. Again its unprofessional but I'm sorry,I refuse to work for a manager that literally a lot of people call mean.

Update:Two days ago I went to pick up my final paycheck and the 2nd manager in command is usually there on Saturdays. I got the check and signed off of him but he asked me why did I quit. At first I said the environment was stressful but then he asked "Was it because of (manager name here?)" I said yeah...maybe. He said you're not the first to quit because of her. We have about 2 people quit per (I'm not sure if he said year or season,because the store is literally always hiring people.) Some of the coworkers I worked with quit because of her according to him and he said he himself at some point quit when he used to work register but he went back better than ever.

My question is,how is it possible that a manager with a bad record for so many years (she's worked there since the store opened) be allowed to continue being manager. It also seems some other coworkers that haven't quit yet as far as I know,when I talked to them,they mentioned that she used to be very mean or is presently mean to them. But they just suck it up. Everyone is so complacent and fine (obv not fine but they won't say anything to her) with her treating them horribly.

You quit. The answer to your question is it doesn't matter. You will eventually learn that almost all jobs have issues like this and you may perceive some rules as "unfair" or that other people are being favored, but that's life. You already know the way you quit wasn't the way to do it. Also, many part-time people get NO benefits, so that is something you'll learn also.

I wouldn't use the job as a reference for getting other jobs, because you won't get a good reference from them.

They keep her because employee turnover isnt a problem that they measure results by. Profit is. So if she is helping keep their profits up, then it's all good. Employees are just a number in an environment like that. In fact you likely saved the company money by quitting.

.Accitentaly quick replied to myself,trying to edit post

My friends told me to focus on my mental health because the job majorly stressed me out with how the manager treated me along w/ several other coworkers. A lot of them also said there is a big chance she has ties or some sort of family in the business that is keeping her there so no one has any power over her. Regardless if she is not a good manager. The store is also low on cashiers because 4 other people quit as well. 1 new girl was put on the roster one day but she ended up not showing up.

you quit so your word will not matter much. poor supervisors tend to last long unfortunately...especially if it is a place that just needs workers to fill low level positions. she is there, she has been there & probably will be there forever. there is a routine and it works.

others come and go. maybe not a great place, but it works.