Gosh, this is quite the can of worms. I have RTFT pretty much, and am still unsure if the OP is U or NBU because as many have pointed out, it's massively complex.
At 51 I am considered pretty "wise" with my life somewhat together, but I have had my share of unsuitable relationships, and I am aware that sometimes my driving force is to avoid being considered heartless or unreasonable or controlling when I have tried to assert myself or put boundaries in place.
My mother had to be the driving force in her marriage because unbeknownst to her my Dad's mental health was deteriorating to the point of breakdown. Her childhood wasn't great, mine was disciplined and mistakes were made. Her attitude is that men need to be manipulated and guided - I feel this is unfair to men - they are infantilised by this attitude and it scuppers any progress towards equality between the sexes and in relationships.
At the same time, I feel a conditioned duty to support, fix, organise and nurture not just in my relationships but in my wider social interaction. I'm still working on that.
It can be very difficult to assert oneself in what one feels is a reasonable manner when there is a chorus of people suggesting that one is being selfish by refusing to help or support people one is involved with.
I agree that bringing a child into a relationship where the father figure is displaying all the traits of a child himself is undesirable, but I partly feel there is a huge imbalance here - women who don't change and modify their lifestyles to put a child front and centre are very harshly judged while men seem to get much more leeway for the huge change parenthood brings. The mourning of their freedom is a huge trope in our cultural media narrative, and the idea that they are being trapped in some way, even if they claim to be willing to raise a family.
Having children isn't really celebrated or supported as a natural part of life any more - paradoxically it is now seen as a selfish choice or a ball and chain - I'm not surprised there is a ton of muddled thinking around the whole exercise as we are bombarded all the time with "ideals" in choice of lifestyle that often do not begin to reflect reality.
We are conditioned on so many levels, both men and women, and it is virtually impossible to totally swim against a tide that pulls us throughout our lives.
Some posts have mentioned that it is anti-feminist and infantilises women who do not "make the right choices" with regards to their partners to say that they are trapped by a patriarchal society; I agree up to a point, but women who do make a stand even before they have children have been abused and murdered in the process. Women who reject "unsuitable" men have been stalked and in some cases accused of being too picky.
You could reject every unsuitable man and still end up with someone who is great on paper then changes for the worse - and this point means that surely, while we empower women to make the "right" choices, we should also be analysing why men are like this at all, and why women feel duty bound to put up with it.
I will just add in the disclaimer that NAMALT nor all women, and yes, unpleasant behaviours and personality traits occur in both sexes and can manifest abusively. However, while statistics tip the balance we need to understand why and work towards change for the sake of all humans.
Thinking back to my childhood, I had a male cousin who was one month older than me, and a female 18 months younger. he didn't have to wash up after family meals, but I and my female cousin did. His academic achievements were lauded - ours were expected. He stayed up later than we did - I was expected to show solidarity with my younger female cousin and go to bed early with her. I resented this massively, and became a "feminist" as a teenager. I was regarded as naive and rebellious because the status quo should not be challenged. Again paradoxically, men were on a pedestal but it was only because allegedly the women in the family allowed them to think they were.
Not gonna lie, I am still confused and occasionally tripped up by it all. As Facebook often opines regarding relationship statuses "It's complicated".