I think you might be prejudiced here. Homelessness is a huge problem in other parts of the world too, especially Africa and parts of Asia.
https://en.m.wikipedia.org/wiki/List_of_sovereign_states_by_...
https://en.m.wikipedia.org/wiki/List_of_sovereign_states_by_...
I don't believe there are many other parts of the world where this happens.
The below article seems to indicate and average of around 700k in the EU.
https://www.greaterchange.co.uk/post/does-europe-have-a-home...