I want homeless people to stop being harassed by police, government, and other people.
If they're harassing other people or making the place unsafe then they deserve to be harrassed by police, government, and other people.
If society has failed someone to the point of homelessness
"Society failing" someone isn't the only thing that causes homelessness. Much of the homeless population are there due to their own bad choices. They deserve help, but they weren't failed by society into homelessness.