Hopefully over time yimby can take hold in some pockets and gradually expand out from those strongholds.
The point is numbers of voters. There are more young voters now than older voters, this is why we are seeing things change at the state level. Now that many millennials are in there 40's with no real shot at home-ownership it's starting to freak people out. Which is why we will continue to see the YIMBY and Strong Towns movements, not just grow, but accelerate in growth.
Acceleration is great hope/source of optimism.
10 years later, the governor is a self-proclaimed YIMBY (even though he isn't), a book on YIMBYism is a national best seller, and nationally, folks are finally realizing that the reason why we're losing the working class on the left is because the left cares more about their own property values than about helping working folks. All the while, there is the parallel center-right focused Strong Towns organization that is making the exact same argument for the exact same movement in more conservative areas.
If that's not extreme acceleration I don't know what is.