We still have Social Security for now. Entitlements are sticky for better or for worse.

We're talking about healthcare, so you're essentially claiming that the reason the GOP has failed to repeal the ACA despite numerous opportunities is because they actually like the policy, not because they're afraid of the political fallout. Can you elaborate more on when and why you think that happened?

We still have Medicare, Medicaid, and social security. Even though each program has been weakened, none of them have been abolished and they can all be restored.

Heck, we still have SNAP, even though it's almost universally hated by republicans.

The Republicans have gone through two Trump terms now promising to repeal Obamacare and can't do it

It doesn't exist for politicians who hitch their wagon to Trump and MAGA; their base rewards loyalty. For everyone else, political suicide is still very much a thing (see the various conservative republicans who've chosen to go against Trump over the years and have been cast out in favor of new loyalist challengers).