So now, your position has changed. It’s not “everywhere is better than the US.” Now (when challenged!) at least you admit “for those who can afford it,” “parts” of the US "systems are “very good.”
Well, at least we’re getting somewhere!
Invariably, criticism of US healthcare comes down to cost. This is circular: Cost doesn’t equal care. I can only say that so much. However, even cost-related challenges fail, because one can always trot out stories about “person X got a big bill and couldn’t pay it!”
But, by nature, that person invariably already got great care!
In life, 1) you get what you pay for, and 2) you have to pay first or at least be able to pay, first. Want to live in a nice neighborhood? OK, you pay more - and you have to buy the house first. Want a better car? Pay more, and buy first. Want a better lawyer or accountant? Pay more. Health care should be no different - if the alternative is “the care is free, courtesy of your tax dollars.”
Yes, Americans go elsewhere, for cosmetic procedures. If people want to get hacked up in Tijuana by “doctors who can’t become doctors in the US,” I can’t help that.