What they ultimately want is to control the revenue stream of 1/6 of the economy. With a single payer system the premiums for healthchare will be paid to the federal government.
So if you think the social security lockbox was sacred, wait till they get their hands on the revenues from healhtcare.
And once that money is spent they will force Americans to pay vene higher taxes or premiums (or receive less benefits) with the threat of witholding healthcare from the nation’s citizens.
What they ultimately want is control of 6/6 of the economy.
Total and absolute government control of every thought, word, and deed.