absolutely. If anything investors provide for liquidity of the market.
The real issue is that investors, ie. the rich, are getting more and more ability to buy real estate while the middle and the low class are getting less and less capable of doing so. The reason is the huge sloshing amounts of money being given to the top, and thus those money causing a strong push for the price rise of the assets (back at the beginning of pandemic i said that it will result in the biggest redistribution of wealth https://news.ycombinator.com/item?id=23924777 toward the rich and large ones)