I said "pretty much". The homelessness crisis in, say, the US, affects a relatively small portion of the population; from quick looking up figures, it's less than 1% of the population.
I'm no expert on any of this, but as far as I understand it, homelessness is usually 1. transitory, and 2. usually tied to other serious issues like mental health issues, drug abuse etc. It's usually not a "lack of resources".
The homelessness goes up and down woth economy and housing availability. Sure, people worh mental health issues are first to loose ... and being homeless makes all the mental health issues worst.
Like, common. And beyond homeless, you have people one paycheck away from being homeless. And people unable to pay for drugs they need - like insuline.
Yes, if all you know about West is what you see in movies, then everyone is rich.