"they certainly don't hate them enough to chase them away when they are smoking meth on the train" sounds kinda like you think that should be done and that the issue is people not hating the unhoused enough.
Especially when you come into a space that explicitly advocates for abolishing landlords and start saying that stuff, you should expect ridicule. Instead of complaining about it in other spaces for 5 days and repeatedly doubling down you could just do some very basic self-crit.