I don't think the problem with the ACA and the reason why many people are unhappy with it is because it was too much to the left.The most compromise of compromises regarding health insurance led directly to a historic Red Wave just months and you think that something more extreme would have gone over better with the electorate? The only argument you can make is that it wouldn't have gone over much worse.
I don't know, the US healthcare is still horror show after the ACA, you honestly think that's the best this country can get?
It's not like Kamala Harris even think that, I don't think anyone on the Democratic field think that.