Abortion kills a human being. There is no logical reason why a state can constitutionally have a law that legalizes killing human beings at one point in the life but it is not constitutional for states to have a law to have a law that legalizes killing human beings at another point in their life.
Even abortion promoters admit that abortion is killing a human being. It’s not removing a clump of tissue or a rabbit.
In case you haven’t been paying attention your precious national regime makes it legal in all 50 states. Has been that way for about 40 years. Where in the heck have you been? Asleep apparently.