If someone shoots and kills a vandal on his property during the night, is it a righteous shoot or is it murder? Should the federal government be involved in the determination?
The vast majority of abortions could be construed as self-defense on the part of the woman. Different states would vary in the level of risk the woman would have to face from pregnancy to justify such a claim. I really don't see the issue as much different from those posed in the vandal-shooting case above, where state authority is well established.
No. It is not the federal government's business. In fact... nowadays it isn't the fed's business. State laws cover most murder cases.
Are you arguing for the federal takeover of state laws and courts?