Clouds - the point at which a man gets to decide if his child gets born or not is actually the point at which his child gets conceived or not. Which he can control as much as anybody can by having protected sex.
Thereafter, he has no right to what goes on with the woman's body but can take it up again with the courts but NOT through waiving his financial responsibilities to his child.
Nature has made things this way, and yes it is a fantastic thing to be the one that carries and gives birth, but it can also go badly wrong. If I'd been born in another country or another time, pregnancy and childbirth would have killed me. Not everyone comes out of pregnancy well and terminations can be just as risky.
A woman can't waive her risks in the way you think a man should be able to waive his responsibilities.
And if you bring the law into it, you get the nightmare scenarios like the one happening in Texas, where woman might be forced to carry babies so ill that they have no chance of life once born, and where tampons are confiscated. In Texas, if they get their way, they would have let me die.
Do you seriously think that the only men to waive their responsibilities will be these poor tricked innocents that are just waiting for the right woman to have a child with but fell into the trap of some money grabber first?
Or do you think there's the slightest chance that some nasty git will dump his pregnant girlfriends, time after time, while screaming to the courts "It's not fair, she tricked me! Again!"
"And if we can't have equality then we could at least make it fairer by allowing men to waive their rights and responsibilities. Things would still be more in favour of women when it comes to children if we did that, but it would mean that people of both sexes were encouraged to be responsible for their own lives as individuals."
Being held responsible for your own actions doesn't seem to work with some men at the moment does it, so why would they get any better with your get out of fatherhood free card?
It shouldn't come as a surprise to any man to realise that if he has unprotected sex that results in a pregnancy, he may have to face up to his responsibilities to his child, including financially.
Which brings us right back to the point. If he doesn't want to do that, he should not leave the responsibility of contraception to everyone but himself.
I don't understand what you find so difficult or objectionable about that.