Just a couple of points (I can't believe that I actually took the time to go back through this thread):
A review (and clarification) of the formula, since Ad seems to have forgotten it:
Note: In no way is the male able to force his will on that of the female. He cannot force an abortion or an adoption. The choice is entirely her's. At the same time, the female cannot force parenthood on the male. Force is not used.
Second point: This is a question about the legalities of the current system, not the ethics of it. Obviously if we were talking ethics, the right thing to do would be to support the female in her choice. If that meant raising the kid, thats what it would be. But we are not asking an ethical question, we are asking a legal question. We are asking, is it right for a woman to use the state to force another person to support her decision to keep the child. It is okay for her to hold a gun to his head and take his money. Is it okay to use the state as a hired goon to hold down another person, take his money, and potentially kill him in the process.
Third point: Any time you use the legal system to force a person to do something, in essence you are holding a gun to their head. In actual fact, you could potentially be killing a person in an effort to get them to bend to your will.
Would you be okay with harrassing, threatening (verbally, and physically), using less-lethal weapons (mace, taser, rubber bullets), using potentially lethal weapons, imprisonment, torture (many people would call what happens in prisons torture), and/or killing the person, in your effort to force him to pay up?
If not, you need to re-think your position because all of these things are possible events and conclusions when you use the legal system to do your bidding.