Republicans hate the Affordable Care Act. A lot. They've tried to repeal it in Congress something like 40 times. In the states, Republican governors and legislatures are doing everything they can to prevent implementation.
I mean they really really hate it. I could lift a Douglas Adams quote and insert it here, but even that wouldn't be a good illustration of how much Republicans hate the ACA. how much do they hate it?
Enough that in their quest to repeal it, they're going so far as to propose a single payer system.