Same with Herbalife, it's considered a pyramid scheme and a scam by many people. Maybe one day the US government says they have to shut down because some new law passses targeting them. In my world, I don't think they should be allowed to stay open just because some investors might be hurt.
Property carries a risk just like any other investment and just because property was scarce at one point doesn't mean it needs to be forever. If the bay continues to have skyrocketing rents and no construction then eventually people will leave and the owner's investments will go to shit anyway.
You say it's all hard work.. then why be afraid of opening the market to more competition? They can put in some hard work at maintaining their position... like every other business in existence.
Same goes for any IPO, or any investment in a startup, etc... Or is it?
Im advocating not changing the game because the new players find the rules unfair.