The fact that women, by virtue of their right to control their own bodies, can abort a baby before it is born, doesn’t change the analysis for either. Both are still responsible for a baby that is born. The fact that the woman has additional options to avoid the consequence doesn’t absolve the man of responsibility (both to provide financial support and to be a father). Women may have many reasons for not aborting a baby. (Maybe they even believe it’s morally wrong!) But if you take action that predictably may result in an outcome, you don’t get off the hook because someone else had the power to avert the outcome at a later stage and chose not to. Both people are responsible.
I disagree. Having more options does in fact alter the level of responsibility.
This is your false premise. Nothing about fairness requires the law to give someone additional rights to offset someone else’s intrinsic advantages. Neither men nor women have a “legal right to decide against the burden of a child.” If either has a child, they’re on the hook for it. The law doesn’t need to give men an additional legal right to “make up” for the fact that women can terminate a pregnancy by exercising their natural right to control their own pregnancies.