1. Somehow people moving into houses that went for $4 to $25 million didn't notice or bother to check that there's a landfill a mile from their houses.
2. Ash waste from last year's huge wildfires needs a place to go, but it's de facto toxic.
3. A waiver granted to allow the toxic waste to be dumped into landfills not rated for handling it.
4. Rich people find they have no more power than residents of Flint, MI
Addendum: at least the cops are deferential to the crowd of protestors that include rich white moms with a babies. They didn't declare a "riot" and didn't fire teargas or rubber bullets at anyone.