Would you still have to pay for Medicare/ Medicare?
You ask...
“Would you still have to pay for Medicare/ Medicare?”
Of course you would. US law requires that everyone over age 65 has to pay for Medicare. If you opt for one of the private insurance plans offered your Medicare taxes are assigned to the company you choose. There is no doubt that the feds would make forcing these companies to make you take the covid shots as a condition of receiving your Medicare taxes.