I'm of two minds.
#1 Any progress has to done on the down low.
Consider our history. Advocacy for fairness, justice, balance always triggers a massive backlash.
Meanwhile, massive decades long investment strategy created a rich ecosystem for deeply unpopular policy agenda has resulted in a nearly complete takeover of our government and society.
Don't storm the castle. Rock, paper, scissors. There's got to be 100s of small wins which cement a lasting victory.
Neither Rome or our liberal democracy were toppled in a day. The attacks were tiny, incremental, seemingly insignificant at the time.
What are the administrative, procedural, non-threatening pro-YIMBY reforms which can be rolled out over decades, peicemeal, scattered across the land?
#2 Settle for Pyrrhic victories
Opportunity for large scale, durable reforms are rare. Maybe every 20 to 40 years. And the effort consumes the coalition advocating the reform.
As said above, any amount of progress triggers a massive reactionary backlash.
Further, the reform coalition was only held together by the shared goal. Once attained, the coalition will dissolve (or worse). Whereas the coalition of reactionaries is evergreen; their individual motivations don't matter so long as they agree on "No".
So go for broke. Maybe someone like Gov Newsom is willing to burn whatever goodwill and political capital they've accumulated in one final glorious battle to cement their legacy.