Exactly. Nobody wants to hear this, because we're all Temporarily Embarrassed Landlords, but if a corporation buying 100 houses to sit on and extract rent is bad (or good), then 100 individuals each buying 1 house to sit on and extract rent must be equally bad (or good).
I disagree with this logic. To take it to an extreme, if one person earning a million dollars per minute has moral value X, then a million people earning one dollar per minute has moral value X. I disagree on principle.