Great point. The "paper abortion" is a salve to the conscience of a man who would prefer not to be consciously aware of the link between sex and reproduction, and would rather the government take his children.
It bears repeating: a woman's ability to become pregnant and bear a child as the result of sexual activity is NOT a bug -- it's a FEATURE.
There’s no dependent to transfer responsibility for if there’s no pregnancy.
Women prize security. They have that now with their “choice” of abortion, or legally forcing their partner to finance their decision to give birth.
Take away that legally mandated security, and they will act in their own best interests. We have failed to eliminate the former, so the obvious choice is going after the latter.