Earlier quoted context omitted.
If you keep building, eventually you will meet the pent up demand. Your scenario might match the first batch of new housing, but it can't continue indefinitely. Eventually you have more houses than people. There is a ton of pent-up demand in the bay area, because this has been going on for a long time. People who own houses there are going to fight you the whole way.
You are of course right in theory. There is some point in which things will stablize and demand is fully satisfied. However that is where your second paragraph comes into play too. It isn't just people who own the homes that are disincentivized from allowing that to happen, real estate developers also don't want housing to get to that point either. And who is the one deciding what gets built with a market approach to…
Developers will build as long as it seems profitable to do so. Presumably this means that when the prices do go down, a few projects will end up in the red when they're done.