You mistake the term investment to mean solely a financial context here.

There's a thing as investing in stability, investing in the ability to modify things as you please, investing in not having to answer to a landlord, investing in having a place for your dog or children...

Your desire to change the rules to favor your taking that same block of land for yourself doesn't seem inherently any more holy than their desire to keep the rules as they are today. And when it comes to setting policy based on the whims of 20-something-newcomers, some potential downsides increasingly start to poke out. Let's put a pause on YIMBY-ism, let's fix the NYC and SF Bay Area transit systems to properly serve the density that's already there, first!