The issue is the US can't get it's shit together. And they can't get their shit together because Americans accept it. They just think "That's they're problem".
I'd encourage you to travel around America a bit. Foreigners are often shocked by how nice and helpful people are here. Americans are by far the most financially charitable people in the world [1] but can be famously neighborly in many more ways than that.
[1]: https://en.m.wikipedia.org/wiki/List_of_countries_by_charita...
What pray tell makes a legitimate charity and why did you get to decide?
https://en.wikipedia.org/wiki/South_Fulton,_Tennessee#%22Pay...
You are revealing your lack of knowledge about the American wilderness simply by stating this. The US is so vast that there are massive swaths of land that you could not get a fire truck to the scene in half a day. It is difficult to imagine such a place if you have spent your life living in a heavily urbanized European country with no actual wilderness (I've seen what Germans and French call 'wilderness' and it is actually a medium-sized park)
Right. The issue isn't so much that "America lets people die because they don't pay." It's that "America gives people the freedom to live in the middle of fucking nowhere, including where a state or local government can't reasonably commit to offering reliable emergency services."