"Definitional things" are often pretty important to productive discourse, and both of the recent comments you responded to with your assertion that "these kinds of organizations" are buying up 1/3rd of homes were clearly talking about large institutional investors, not some guy who owns a few rental homes.
It's entities bigger than them driving up prices. The adversarial situation might even be even more apparent with the guy buying up 'a few' rental homes.
You’re commenting on a story about how housing demand is cooling, so why are you talking about how investors are driving prices up? Especially when the institutional investors are selling more than they’re buying…