This reverses causation. Investors are involved because prices are going up, not the other way around.
"Investors buying up housing" is a common explanation alongside "short term rentals taking over" but neither make up a large enough portion of the demand to explain prices.
In a feedback loop, every element in the loop is both a cause and an effect. The way to stop the feedback is to shift one or more relationships in the loop.
If you are lucky there can sometimes be arranged some convenient control elements- but in many difficult problems a lever that you can pull that only affects that one thing doesn't exist. You have choices of levers that affect a multitude of things, maybe many of which go counter to the desired independent effect