Actually the increase in health care costs slowed dramatically because of the ACA. If Republican governors hadn't worked so hard to sabotage it it would have worked even better, same with Republican senators. Sure, the ACA needs fixing and adjusting, but let's not pretend like the free market health care system before the ACA wasn't getting more expensive every year. Remember, the free market is what made it so 50% of all bankruptcies in the US be due to health care costs, and the free market is what decided that hiring lawyers to find ways to deny care was more profitable than paying doctors, and the free market is what decided that being pregnant, being the victim of domestic abuse, or donating a kidney to a family member should be considered a pre-existing condition and result in completely unaffordable care options. These problems existed before the ACA. It fixed some of them, and needs adjusting, but Trumpcare will set us back decades and kill lots of Americans.