The abortion issue always boils down to a moral decision of when a human life begins. The government, at any level, has no more power to force moral decisions on the people than one person has the power to push their morals upon another. If you feel that a human life exists at conception then you should morally object to abortion. If you believe that a human life begins with the first breath once it leaves the womb then abortion would be acceptable for you. If you believe the human life begins between those two points then you have to decide when.
Having a heartbeat doesn't make it human... Some babies are born inside out or without necessary parts and die a horrible death while the mother looks on. Did she murder the offspring by giving it birth? Would it have been worse to abort it?
Moral questions have no legal answers.
If people want to kill a human being inside themselves, they should have to do so at their own risk.
The government should stay out of it. Legalizing is like supporting it (or enabling it)
The idea that everything legal is endorsed by government or society is deeply despotic. It presupposes that the job of government is to decide what's good for us and force us to do it. Fuck you very much.