You saying this unironically is peak you.
Overturning Roe was a good thing, though it may have bought some R losses for a while, it was a shitty legal fiction that needed to go, and it's after-effects will subside in time. You are right about one thing, though, most Americans agree that there should be some restrictions on abortion. You construing this as being anti-republican, however, is confusing. If most people are ok with some abortion but not unrestricted, then why is it still such an issue for the left? I'm not sure your characterization that the left doesn't want abortion on demand is actually true. Most on the left use such notions as "life of the mother", rape, incest, etc (i.e. some other extreme justification) to serve as the justification when the know good and well that it's really about getting it approved because they consider it a family planning tool - which is the justification you quoted in your post. So sure, there's some elections to be lost for a while. I'm fine with that. This is merely the first step in getting back to a rational basis for abortion. The next step is defining the issue more clearly so it rules out the real crime, which is abortion "because I want one."
The "life of the mother" trope is precisely that: a trope. It was never illegal in this country for a woman to get an abortion if her life was in danger. Don't take my word for it, though, here's the Texas law that Roe overturned (https://www.sll.texas.gov/assets/pdf/historical-statutes/1925/1925-3-penal-code-of-the-state-of-texas.pdf#page=278). Read it yourself if you don't believe me, but it's your side that has been propagandized and spouts non-starters as if they're informed on the issue or historical context. In reality, your lack of SA is on blast.
So yeah, the left wants abortion because they believe it's a family planning tool, or a "bodily autonomy" issue, or some other such nonsense, but they use the above tropes as emotional wedges because it's easier to sell it that way. You know that and so does everyone else. So let's not avoid the issue by saying it's all about the "health of the mother" because it isn't, and it never was. Eliminating abortion at any point for frivolous reasons is what this is all about and most Americans agree that it shouldn't be used as birth control. That's all I get from the poll you posted.