Being homeless and not having a place to shower excuses you looking unkempt and smelling bad, but that's not what people are upset at homeless people for. There

Being homeless and not having a place to shower excuses you looking unkempt and smelling bad, but that's not what people are upset at homeless people for. There's plenty of people who smell bad despite being housed (eg. teenage boys, gamers, or anime convention attendees), but they get nowhere as much flak as "homeless people". People are upset at antisocial behavior like urinating in public, aggressively approaching others, and setting up encampments. Except for maybe the last item, all of those things are a homeless person chose to do.