It's a wonderful idea. Free healthcare for all. Sadly, it simply isn't sustainable financially. I think in the next 10 years alone it was supposed to cost tax payers 10 trillion and that money can't literally be printed fast enough and the debt our country holds, extremely unsustainable. If they did it cheaper or more cost effective, I would say yes, but financially, you can't.
Our crap healthcare is one of the biggest drains on the economy. What the US government spends on healthcare disregarding spending by individuals is still more per capita than any other universal health service.