Interesting thread.
My two cents worth - women are programmed from a young age to be caring, nurturing, obedient and to clear up the messes of others - you only have to see the number of threads on here about "disruptive" male children being placed in the "care" of a "good girl" at school even at primary age. I experienced this myself 40 years ago and am only a little surprised it still goes on.
There is still alot of shame associated with a failed marriage scenario and all the hand wringing about "but what about the children" which makes many women hang in there for grim death because their needs apparently come last.
I've had several failed relationships and the underlying tone, even when in a severely toxic situation was that I had somehow not tried hard enough, even when it lead to me being sectioned - the action that lead to that was illegal but I came under enormous pressure to move on, put it behind me - he couldn't help it, he was under stress, it wouldn't be fair to add an extra layer of stress to the whole family especially the children (not all mine) on top of the inevitable divorce...... still angry, still bitter and there's fuck all I can do about it.
So why do women "keep having" children with "useless" or abusive fathers - well, it's complicated. Very complicated.
If you can stomach it, there's a Brazilian series on Netflix called "Good Morning Veronica" - basically a police procedural that is based around misogyny and includes a serial killer whose wife is expected to produce a son for him and is co-erced into helping him with his crimes - while yes, it's obviously a fictional thing, watching it gave me chills as I recognised quite alot of the headfuckery employed both in relationships and institutionally.
I'm older and hopefully a bit wiser now, and my child bearing days are gone, but it's taken me a whole lot of heartache to get here and while there is an element of personal responsibility involved in these situations, you can only make your decisions based on the available information in any given moment. Once you start to feel a decision was "bad" extricating oneself isn't easy - and sometimes the biggest lies are the ones we tell ourselves because the truth can break you.