"Second. Sexual objectification does exist, there are men out there, like extremist MRA/Incel types who see women as walking vagians and wombs"
It's not really natural for men to be incapable of any level of commitment with any woman, you'd have to have something broken inside your brain to be that impervious, maybe there's some trauma, maybe he's just a sociopath. As a general rule, we're hardwired to establish families and reproduce. So if a man views you as just a fuck buddy as a woman, maybe you're just not the one. And if that's a problem with every single man you meet, maybe you need to look inward rather than cry sexism.
If you expect every man to never have or seek sex without commitment, you're being very unrealistic about male nature. They'll settle down, but they'll also fuck along the way and if they can't they'll watch porn or pay hookers or whatever.
So I don't buy into this, it's either a lack of understanding or a refusal to accept natural male behavior. It's very similar to Elliot Rodger, he tried to revolt against female nature but failed utterly. He saw himself as a victim much in the same way feminists who fail with men view themselves as victims and it's no wonder that both him and the most extreme of feminists are miserable people.
To sum it up, if men objectify you, either find other men who won't or reconsider your personality. It is not an issue for either society as a whole or the government to fix.
"Fourth. Speaking of my ex, and maternity leave, when our first child was born, he came two months early, spent those next two months in the NICU and came home on oxygen and a apnea monitor. When she tried to get her maternity leave extended to care for our child, the company she worked for refused. After looking at every possibility we could come up with, we decided the best thing was to do was for her to stay home and raise him until he was old enough to go to preschool, fortunately I had just landed a good paying job."
There may or may not be a case for that, but one thing you have to remember is that feminism deals with misogyny. Not agreeing that corporations should pay maternity leave is not misogyny, it's simply based on the fact that since you're NOT selling your labor during that time, there is NO claim to that money. You get paid for what you do, not what you don't.
This is a policy that needs to be debated on its merits rather than one side crying sexism because it doesn't get its way.
"So what about a single mother in her position,"
I'm glad you brought up that issue. Single parenthood is a serious liability for society and there's a good argument for not encouraging it in any form. You should not be having kids before you find a spouse. Kids raised by single parents are more likely than those raised by two parents to be troublesome individuals when they grow up. They dropout more often, commit felonies more often and overall just more likely to be unbalanced individuals.
I would, at the very least, insist on a clear distinction between single moms who are single because their husband died or whatever and single moms who are in that position because they made bad life choices.