Gov't subsidies don't help me but maybe if I'm not forced to pay for the folks who aren't paying, I'll be able to afford mine. Did you ever think of that?
The ACA thought of that, thus the mandate to buy insurance.
Undoing that means we go back to the free rider system where the uninsured don't go to the Dr until the are really ill, but then go to the ER when shit meets fan, get treated, can't pay, file bankruptcy, and providers pass costs to the insured.
Is underinsurance and too high deductibles still a problem? Yes, but the current GOP plan fixes none of this and only makes it worse.
Cost controls, rationing and higher taxes on the wealthy are ugly truths of proven solutions that conservatives don't want to face.