Are the republicans costing medicare for all to include the increased
costs to current medicare that will occur when 68,00 a year don't die young due to bad or no insurance and make it to 65? If they are doing that then they should ad the tax revenue forgone by someone dying young to their internal Republican costing aswell. All in all a single payer like we have in canada keeps costs down by preventive medicine, less admin costs and bargaining power. That doesn't mean that you can't get a second opinion at the MAYO Clinic if you have the extra private insurance or $. Or treatment at specialized research hospitals if your local healthcare providers are stumped. The research doesn't stop just because you have medicare for all. The quality of care is excellent.
I think with the republicans it is really about power and cleaving the country in two while something like an improved healthcare for all would bring the country together. It would also mean more lower middle class or poor to vote. So they can'y have that.
Here is where i get the 68,000 annual deaths number.
https://www.newsweek.com/medicare-all-would-save-450-billion-annually-while-preventing-68000-deaths-new-study-shows-1487862