Medicare for all is like scrapping the tax code for a consumption tax. It sounds great in theory to the people proposing it but they underestimate how much hay the opposition (corp oligarchs, knuckledraggers, sheep like GOP Congresscritters) will make out of the proposal due to the complexity of getting it implemented. This is before you get into any of the merits of the proposal itself.
A classic mistake Obama made. The effect of the policies he was proposing/implementing will cut through all the noise. No, it doesn't as he learned the really hard way.
BUT, if you want to screw the right, don't open with Medicare for all. Put their balls in a vice with expanded Medicare to those 50+ where they can buy into the program. Job loss/age discrimination is a real problem and people nearing retirement age don't necessarily want to engage in the "gig economy". Allowing them to buy in before they turn 65 is something even most righty voters will support, and potentially puts the GOP at odds with their main supporters.
This would have universal appeal with Dems from Sanders to Manchin and everyone in between. Run on this, keep it simple, and then once in office tack on expanded Medicaid, which is the same principle only that people who qualify for subsidies on the exchanges can buy into Medicaid at the same rate as they're paying out of pocket now for health insurance. No, its not 100% single payer but it covers a lot of ground.