the function of the law is dispute resolution between CITIZENS
in your example, the person who believes they were HARMED will petition the state to resolve their dispute between CITIZENS
So if I murder an undocumented immigrant, then should it be legal? No; the penalty would be death for murder while not being a bodily threat. The penalty for abortion should be community service (which factors in bodily autonomy; otherwise the penalty would be death). I'm not pro life; I'm anti-abortion. It's a less appealing label, but it's more honest, and it's only honesty that is relevant.
I'm also anti ICE, so the idea of it being legal to murder/deport undocumented immigrants is an idea I find repulsive.
what happens inside your own body
Do you think tobacco should be legal to consume? You would say:
Yes, because it's their body
What if the tobacco addict wants to rob you to satisfy their tobacco addiction? Should they be allowed to do that? You would say:
No; that's crazy!
But "their body, their choice". Oh wait? A tobacco addict robbing someone to satisfy their right to bodily autonomy harms someone else to a significant extent? And bodily autonomy to smoke tobacco isn't a good enough reason if it means you have to rob other people to satisfy your tobacco addiction? Alright; now a precedent is established.
If bodily autonomy is not a good enough reason to rob someone of $8 for tobacco, then bodily autonomy is not a good enough reason to rob someone of their life (I'm assuming objectively speaking, the right to life is worth more than the right to $8).
If a woman doesn't want pregnancy, then she should make sure her bf has a vasectomy before they have sex (like I have no problem getting a vasectomy before I have sex if that's what's needed to prevent abortion). But abortion should be banned unless there is a 1% chance or higher the mother dies without one.
is beyond the scope of state authority
State authority should prevent homicide from directly happening. I think that's obvious. If something has a 100% chance of producing homicide, then it should be illegal to do that (this does not apply to gun laws because there are 20 million AR 15 owners and around 200 or so deaths from mass shootings; the odds of one AR 15 owning person murdering someone from a mass shooting (the expected value) is about 1/100000 (.001%) whereas the expected homicide rate from one woman getting an abortion is 100%). If 100% of AR 15 owners committed murder, then I would want to ban AR 15s. But those aren't the odds; .001% is different than 100%.