Now I know.
This action would have an impact.
Other problems will ALWAYS remain. That's no reason not to make a dent in what can be dented.
Banning institutional investment doesn't remove the "can only go up" laws and mindset, so I think (assuming this even happens, which it probably won't: TACO) the actual effect on prices will be minimal.
This would make the situation slightly better for people who want to buy houses.
Perhaps it's the case I'm 100% for this mainly because my extremely low expectations for politicians have been met and exceeded in this circumstance.
I don't know why we have to be negative about something that makes a small improvement in something that sucks.
This isn't even shooting the messenger or the guy pointing out that the emperor has no clothes, I'm not sure there's an existing idiom for the thing you're doing.
To the extent that it has the effect of transferring some properties from rentals to sales, it's only better for the renter who wants to buy and who just barely wasn't able to. It's worse for renters who either don't want to buy or who still can't afford it, because rents will increase due to reduced supply.