Unless I’m mistaken, employers specifically avoid employing homeless people, and having a PO box instead of a street address is a pretty strong clue that you’re homeless.
you’re mistaken. I’ve had a PO box for 30+ years and maybe 5 different employers in that time period. Admittedly anecdotal but I’ve never had an employer ask me about the PO box.
True, but fixing that is way easier than somehow housing all the homeless people