Hhmmm....I agree and do see this. Tearing other women down as opposed to building each other up. The whole "mean girls" method. The shunning, the snide remarks and looks behind backs...the whole shebang. It's almost like lets eradicate them to the point of making them go away type of behavior.
And judgement...yep. If a woman isn't living life the way they think a woman should...yep.
Even in motherhood there's off shoots of what you've posted...called Mind your Motherhood.
I get it's been going on for generations. Probably does stem from being oppressed in the past and learned through generations as it's a way to have power??