"Maybe a conservative can explain, the Repiblicans are going to "repeal" the ACA"
Not all Kool-aid the Republicans mix up is logically persuasive.
BUT !!
a) Republicans guzzle THEIR OWN kool-aid by the barrel.
b) While it may not be persuasive or even rational to an objective 3rd party, fellow Republicans swoon to it.
c) There are perceived benefits to ACA, no ineligibility due to preexisting condition for example.
BUT !!
There are also elements to criticize.
And Obama-bashing Republicans focus on them with zealous single-mindedness.
The obvious irony here is:
1) If Republicans dump ACA and don't replace it, they'll earn criticism for that.
2) If Republicans dump ACA and replace it with Trumpcare, the Democrats can and likely will criticize it with the same scrutiny the GOP applied to ACA.
It is wisdom as old as the hills, literally Biblical: live by the sword
die by the sword
you reap what you sow