I can’t speak for the people who downvoted you (I didn’t even see that thread since I had the first person to reply blocked, so I had to go in private browser to check it out), I don’t think you’re being callous, you made a valid point, and I’m sure you didn’t mean we should just dump homeless people on empty plots of land and call it a day, but also provide all the other things that person pointed out would be needed. I think maybe some people just don’t see providing the other necessities as an obvious, or even acceptable part of your suggestion, but that is a different matter for them to explain, since I can’t.

Either way, try not to take downvotes to heart, they’re just anonymous internet pixels, they don’t actually matter (E: though I definitely understand how they can be discouraging and even confusing at times).