I was agreeing with Someone1234 about people not wanting to lose their employer based healthcare.

US voters haven’t had the option for single payer, but they did have options for removing employer sponsored healthcare.

It's less expensive in aggregate, but on an individual level rates will almost certainly go up (even if they're lumped into taxes). Individuals cast votes, so if individuals are negatively impacted, they're going to vote against it.

The only way to dodge that is to subsidize it, whether by reducing the budget elsewhere (cough cough the F-35 program cough cough) or raising taxes (cough cough on the ultra-rich cough cough).

I actually doubt it. Whenever I go back to Italy I can easily buy glasses at full price for the same price I get WITH insurance in the USA. Same story for a lot of other stuff, like dental work etc...

Insurance pushes the price of care up by about 5 to 6 times in my estimation, single payer would fix it.