Collusion is just a tool, an illegal one, but a tool nonetheless. You say RealPage is magical, I think it’s just evidence of its control over the housing market, not clairvoyance. It self-fulfills whatever prophecy it comes up with. And these prophecies seem to always predict ever increasing prices(excluding high frequency noise), far above what the market would normally allow.

Renting is supposed to have risks, without these risks it probably wouldn’t even be allowed in modern society. Landlords are well within their right to find creative ways to mitigate them, but it can’t involve breaking the very same set of societal rules their tenants are following, there is nothing creative about that. If only criminals targeted criminals, but they always go after the easiest victims.