I'm all for this. But at the same time—if I may play Devil's advocate here for a moment—where will the money come from to fund the doctors', nurses', and staff salaries? Who will pay for building and maintaining the hospitals and treatment centers? Who will fund research?
Government, yes. But where will the government get that money?
Where they get money for everything else. Taxes.
Taxes that—as of the way everything in this country is structured right now—will most adversely affect the poor.
So technically speaking, healthcare still won't be free—althought it most definitely will be cheaper than going into the ER for a relatively minor upper respiratory infection that could've been handled by your Primary Care Physician or even an Urgent Care facility, but ending up with an overnight hospital stay "for observation" and walking out the next day with a $10 prescription and a $14K bill…
(Yes, this happened to me a couple months ago. Thankfully I'd already met my insurance deductible for the year and it cost me only a few dollars, but not everyone is so lucky.)