They did a study of Seattle’s minimum wage that did not hold up well in subsequent studies, in part because their assumptions about how adverse effects would manifest were poor. They seem to have memory-holed that. Seattle’s minimum wage is higher and more broad based than California.

Regardless, with the passing of time the adverse effects have worsened to the point that even proponents in Seattle acknowledge there are serious issues that have resulted which need to be addressed.

California looks like it is trying to speedrun Seattle’s mistakes.