I can tell you from my experience working in homeless encampments in Oakland that most of the people living there are neither mentally ill, nor abusing drugs. Most of them are people who would ordinarily work on the very bottom rung of the employment ladder, in jobs that 20 years ago would be a good fit for someone undermotivated, or quirky, or otherwise unfit for a more “responsible” job.
But there’s no place for them anymore; automation has replaced some of those jobs, and a combination of plunging wages and a more ruthless Amazon-style workplace has made many of the jobs that are left intolerable. People are choosing a tent in the park in Oakland over working three part-time jobs and being micromanaged by an AI just to barely afford 1/7th of an apartment. And, we have imported tens of millions of unskilled, mostly unauthorized immigrants who are happy to take those jobs - another thing you won’t hear discussed in these articles.