We spend an enormous amount of money keeping people homeless.
If we didn't spent that money to keep them homeless, those little encampments would slowly turn into villages. It's not that hard to build a house from scavenged materials over time.
They had 'put up signs' - small, on a wall a block away, down by the sidewalk. So as to make sure folks like him didn't see them, so they could terrorize them by destroying their camps.
He had gone to the police station to request his valuables back - everything had been neatly filed in boxes - and they made him sit outside on the ground for an hour and ignored him. He never got anything back.
His pictures of his grandmother, his guitar, his skateboard, his camp stove - all destroyed.
So yeah, people get beat down, and its systematic.