This is a thing that you don’t notice until you experience it. No more compelling argument that we’re doing something wrong as a nation than that first time stepping onto an American street after visiting a civilized country.
I live in a civilized European country and gravely miss the freedom of speech I had in the USA that I don't here. I'm terrified one tweet will get me jailed for 30 months.
True, after you visit a country where the cities are entirely safe and there aren't really any bad parts, it's disheartening to return to American cities where people say: "It's really safe! Just ignore these areas, don't go out late out night, keep an eye out when you walk around, and just ignore the crazy people yelling threats at you, they probably won't do anything."
Americans really put up with low standards in a lot of areas, and it becomes obvious the more you travel.