If a State wanted to make abortion legal, it would at least be somewhat Constitutional. Then the voters of that State could deal with the sanctity of life and their own politicians.
Oh yes, I think it would. 10th amendment and all that. The thing is, we'd get a real patchwork quilt of abortion laws. In New York, abortion would probably be legal into the 3rd trimester, in Virginia maybe it would be legal in cases of rape or incest. In Texas maybe it would be illegal everywhere. So then people would go across state lines and eventually the Supremos would declare it was a matter of interstate commerce and regulate it anyway. A federally protected right to abortion is a sacred cow to liberals, they will not let it go.