So your issue is that owning a house is too expensive because housing is artificially scarce but you don’t think that privately owned investment properties is the fault of that? Renting will always cost more than the upkeep of a house because otherwise nobody would lease. The only reasons housing prices changing is a worry to homeowners is because housing is artificially scarce and the artificial scarcity changes based on how much of the artificially scarce housing investors decide to put on the market. All your issues with personal ownership of a house stem from other people treating housing as private property that can be invested in.