Then why don’t you MOVE to those single payer countries, experience the care and report back to us?
I worked in Canada, and was treated to the experiences of the Canadians regarding their healthcare. It is not well loved, nor is it cheaper.
At least most Canadians are honest enough to tell you that their health care is not “free”. They pay taxes out the wazoo for it. The best they have to say for it is that it keeps anybody from going bankrupt and losing their house due to medical bills.