Do you honestly think a man should be punished financially, even if a woman deliberately "oopsed" him into parenthood?

What you don't seem to understand is that parents paying child support is not about punishing them. It's about supporting the child. No, it's not nice for a man to have to pay child support if he never wanted a kid and was lied to about contraception - but it's not about him. It's about the child. If he wasn't prepared to risk paying child support, he should never have been having sex in the first place. Contraception can fail, deliberately or not, and once a child is born, that child needs support.