“I’m really not seeing how a state law in Alabama is going to kill Trump.”
Don’t get me wrong - I think that Alabama should be permitted to pass a law like this, that Roe v. Wade is HORRIBLE law (not even so much for its results, as for the twisted and made-up-from-whole-cloth legal reasoning that was used to justify this decision) and should be overturned. But exactly NONE of that speaks to what the effect that this law will have upon the election next year.
The people that are outraged by this would never vote for Trump (or any Republican) anyway.