If you click the link and, leaving all the rest of the defaults alone, drop the required affordable housing percentage from 10% to 0%, you lose about 4,000 affordable units but gain 6,000 market-rate ones. So, would this change increase or decrease displacement? Well, another recent Berkeley study concluded that a new market-rate apartment has about half the displacement-fighting impact of a below-market-rate apartme…
The entire concept of low income housing is a scam to keep market rate prices high. Build enough market rate housing that the price falls to what low income people can afford and you don't need any low income housing. If the government spent the money it spends subsidizing rents on subsidizing construction then the problem would be solved.
What makes you think they don't?
In fact, wasn't that the problem in 2008?