I’m not sure how this would work practically in the US. A huge constituency of people has most of their finances centered around their home as minimally a value store and maximally a growth investment. Having homes go down in price or even just leveling off would create a whole other host of challenges for a society that’s been organized so completely for so long around home values going up.
Good thing this would have no impact on home values. Hedge funds getting involved is a symptom, not a cause. Hedge funds buy properties *because* home values go up due to limited supply. The only thing that can lower housing prices is a dramatic increase in supply.