@mekkaokereke I used to volunteer with a homeless charity over here in Britain. One thing I learned from the experience is that we're all little more than 2 strokes of bad luck away from homelessness.
Yes, some homeless people are addicts. For some, the addiction led to the homelessness; for others, the homelessness led to the addiction. But you're right, they're us - people with homes are not superior to people without them.