All of these arguments have been answered repeatedly.
- How would it be paid for - by payroll taxes. People would no longer have to pay insurance premiums, deductibles, copays, and high prescription prices (since drug prices would be negotiated by the Gov). We would literally reduce our per head cost of providing health care to each citizen from $11 per head now under the insurance based system to about $6 per head under medicare for all, all the while providing coverage for millions more people.
- People who go into emergency rooms now for "free" aren't really free since the hospitals end up billing the government for services rendered on the back end, which results in local, state, and federal taxes having to pick up the $30b in annual tab.
- Government would not dictate your healthcare. You would continue going to your provider as now. The only difference is there would be no financial transaction at the point of service.
- Look at Canada for example - they do healthcare properly. Walk in, get treated, walk out. I witnessed it myself while there a couple of years ago. All nations who have universal healthcare love it and citizens seek to protect it because they know what a game changer it is in providing basic human security to much of the population. No more medical bankruptcies, no more having to worry about how to treat your cancer because you're out of work, o more copays, deductibles, etc. Just go to the hospital, get treated, pick up your very cheap meds, and go home.
- We shouldn't seek to improve our system because "there will always be haves and have nots". This is just an incredibly cowardly and morally bankrupt view to espouse when your fellow citizens are suffering. The polling on this issue has been pretty consistent and will only rise in the future since having a sane and effective way to do healthcare is not a partisan issue, as shown below. You can't get ~70% polling on many issues in this country anymore and yet healthcare is something that seems to unite all Americans.