> People that need healthcare don't have a choice, people _do_ have a choice to relocate to a more sustainable city though[...]
People have a choice in relocating from New Orleans for less flood risk, but they don't have a choice to relocate from the US if their main problem with living there is is with the US's health care system?
I'm not going to argue that they should, but this example isn't exactly doing the work for you that you seem to think it's doing. If you're going to say "just move from New Orleans" someone else can say "just move to Canada".
You can argue about the relative difficulty of those things, but they're not inherently different, and there's certainly people for whom it's a lot easier to move countries than say people in abject poverty in New Orleans who can't imagine pulling off a move to another city in the US.