[Tiktaalik]

That's only the problem if you're almost wealthy enough to be able to buy a home and you see investors as competition that prevents you from doing that.

If you're a working class renter that never really expects to be able to have the wealth to buy a home, the "investor" boogieman that is "buying up housing" is creating more places for you to live.

[wubrr]

Investors buying up housing supply are not creating any new housing whatsoever. What they are doing is decreasing the availability of new housing for those who actually want to buy a home to live in, while at the same time cornering the rental market and increasing rents (and therefore speculative RE prices) across the board.