So your response confirms why I called it a wedge issue.

Most Americans don't like abortion laws the don't take into account the health of the mother. So that type of law becomes a wedge among Republicans.

Conversely, if a state passes a six week ban (Florida), that's going to draw out these distinctions among Democrats.

I'm not making a moral claim. I'm commenting on the politics of campaigning on it. I think politicians are advantaged at avoiding wedge issues and focusing on material concerns that affect the most people.