P1. A child is a creation from the equal input of the man's sperm and the woman's egg after sex.
P2. But sex is something that is not solely used to produce offspring. It can be used as a source of pleasure.
P3. Based on P1 and P2, intent is crucial when man and woman have sex because on the one hand, they could be having sex to have pleasure. But on the other hand, they could be having sex to deliberately create kids.
P4. However, it is possible that despite one's intent to have sex only for pleasure, a child can be produced as an accident.
P5. Hence if the girl gets pregnant, that does not mean that it was the man's or woman's intent for that to happen.
P6. A man and woman have sex with only the intent of pleasure (P2) and woman gets pregnancy accidentally.
P7. Actions have consequences. Let's assume that people must deal with the consequences of their actions.
P8. The initial consequence of P6 (the initial action) is that a child is created. And that's it. That's the only consequence so far.
P9. As a result of P6, P7 must be followed. It's either they abort the child or they go ahead with the pregnancy and the child is born.
P10. Intent is key to P9. If the pregnancy was not intended when having sex, either man or woman is justified to deal with the initial consequence (P8) by aborting the child directly.
P11. The man decides that he doesn't want to keep the child because he never intended to create children initially (P2).
P12. Although the girl originally didn't intend to get pregnant, she decides to go ahead with the pregnancy for some reason (e.g. moral, religious reasons).
P13. According to P7, people must deal with consequences of their action. And according to P8, the only consequence at first is that the child was created.
P14. The man has two options to deal with the initial consequence (P8): Force the woman to get an abortion or walk away from the mother and child completely and not offer any support.
P15. Since the man cannot force the woman to abort the child since it's her body, he cannot deal with the initial consequence exactly how he wanted to. He took an action in having sex. The only consequence of his action was that a child was created. He has tried to deal with the consequence of his action by trying to get the woman to abort the child. But the woman has refused to grant his wish.
P16. As a result of P15, the man is redeemed of the consequence of his action because he tried to deal with the initial consequence by getting the woman to have an abortion but the woman refused.
P17. As a result of the man's redemption (P16), the man can now take the other option of walking away from the pregnant woman and is now officially out of the equation.
P18. P6 was the initial action of the woman. She chooses to deal with the consequence of the pregnancy by going ahead with the pregnancy. So, she has shown intent in having the child.
P19. She gives birth to the child.
P20. As a result of P19 (the new action), the woman must face a new consequence. The consequence is that the child has to be looked after physically, emotionally and financially.
P21. Instead of giving the child up for adoption, she chooses to keep the child. In doing so, she accepts full responsibility of her action (P19) and the consequences (P20).
P22. Since the man was out of the equation in P17, he cannot be responsible in any way for the woman's action (P19) and the (new) consequences of her action (P20).
P23. If P17, P21 and P22 are true, then the man is not obligated to pay any child support because he was not involved in the secondary actions of the woman (P19 & P21) and hence, the new/secondary consequences cannot apply to him in any way. The new/secondary consequences (P20) can only apply to the woman since she was responsible for the secondary actions (P19 & P21).
C. As a result of P23, the man shouldn't pay child support. And all responsibilities to the child are solely on the woman's shoulders. And if the child suffers, the mother is solely responsible for it.
And since the man is unjustifiably forced to pay child support, the lack of men's right to male abortion counts as part of the suffering that man faces.
I stress that it's important you acknowledge the consequences involved in my argument. There are only two consequences: P8 and P20. It is only the initial/primary consequence (P8) that applies to the man. The secondary consequences (P20) cannot apply to the man since he didn't take the actions P19 and P21. P20 only applies to the woman because she took the action P19 and decision P21.
So there you go. What do you think of this argument? If you disagree with it or are against male abortion, feel free to respond. But I must make it clear that I want any counter-arguments to be as logical as possible. You don't necessarily have to put a list of premises and stuff like that. But just make sure your argument flows with logic. Rather than using the typical stupid emotional arguments.