I know I'm late to this conversation, but I don't see why abortion should be illegal. I just don't think it should be a government funded thing.
If a woman doesn't want to carry a child and give birth, she should not be forced to do so. Highly unlikely that such a child is going to grow up to be a well adjusted, productive member of society. That said, there's no reason the state should be using tax payer money to assist such women, unless there are exigent circumstances.
There are too many women today who've just shunned all personal responsibility, and use state funded abortions as a most perverse form of fucking birth control. These women need mental health treatment, not easy unfettered, unaccountable access to abortions.