In the same way being shot in the liver is better than being shot in the back of the head, sure. But if I saw someone saying victims of shootings that got bodyshot are "shitting on it for no reason" and "they only hate that their bullet scar is ugly" I'd call them out too.

Just cause something is better than the absolute worst doesn't mean it's immune from all criticism. There's probably a fallacy name for this, but I don't know it off the top of my head.. I shall call it "the starving kid fallacy" for now after the classic example of "there are starving kids in africa so you should eat your vegetables" that parents do.. and it the same way OP is doing by saying "there are homeless people, so you should be content with living in a commie block". It's just guilt tripping people for being dissatisfied with their situation for no particular gain other than a perceived moral high ground

there was a project to move people from favellas to social housing. Didn't work for a few reasons, including long commute time to and from work and no infrastructure. People in the streets have a working community that helps them survive, simply moving them to hellscrapers destroys it.