I can't even remember the last time I saw a homeless person in Vienna, a city of two million people. The reason it's like that is because we fixed the systemic issues that plague the US. [1]
It's not my view of the world that's naive. It's yours that's overly cynical and that cynicism is holding your country back.
[0] https://www.feantsa.org/download/austria-2017859919493467368...
[1] https://crosscut.com/2017/06/homelessness-housing-crisis-sea...
0.16% for Austria and 0.17% for the US, given my back of the envelope math and a quick Google search.
You sure those systemic issues are fixed?
edit: Numbers I used.
Austria 8933346[0]/15000[1] - 0.16%
US: 330000000[2]/580466[3] - 0.17%
[0]https://www.migration.gv.at/en/living-and-working-in-austria...
[1]https://news.ycombinator.com/item?id=29596289
[2]https://www.census.gov/popclock/
[3]https://endhomelessness.org/homelessness-in-america/homeless...
I have however lived in cities in both the US and Austria extensively and can anecdotally tell you the homelessness doesn't even compare.
If all those numbers are correct, I would assume it's a distribution issue? Maybe there's a small percentage of homeless folks all over Austria, while they're a lot more segregated into certain cities in the US?