As successful as Obamacare has been it didn't really do much to lower the cost of healthcare or claw back the billions wasted to insurance company profits. There might be some kind of regulation just as effective as single payer, but we've never seen it anywhere in the US.

> As successful as Obamacare has been it didn't really do much to lower the cost of healthcare

It dramatically lowered the cost to consumers. Further, conflating overall healthcare spend with the portion of spend tied to a significantly lower-cost population is apples and oranges at best and represents a fundamental misunderstanding of healthcare cost in general. It's ok to not have opinions about things you know you don't understand.