Whereas YIMBY-activism is a bunch of wealthy upper-middle class professionals who want what they want when they want it, sponsored by massive owners of real estate who would like that real estate to become more valuable.

Both conservatives and leftist are pro-community. Their opponents are wealthy migrant laborers who plan to make their money, then leave to go back to the communities they came from. In your city, they're YIMBYs. When they're back in the suburbs and little towns they came from, they'll be HOA warriors.