I assume you use semiconductors yourself, since you are posting here. But you want their manufacture to be banned in your state.

So the right thing is to outsource the dirty jobs to countries that can’t afford to be picky?

Wouldn’t it be better for the world if we used our wealth to develop methods of safe semiconductor manufacturing with low environmental impact, and proudly built those facilities in California?

Well that's the whole problem isn't it?

It's not like the laws are simply "you can't make semiconductors here". The laws ban the harmful externalities of the process. The companies that want to make semiconductors don't want to find a way to make the processes less harmful: it's cheaper and easier to just go somewhere where they can pollute instead.

When an industry leaves this many superfund sites in an area, that industry can expect some regulatory blowback from that area.

https://en.wikipedia.org/wiki/List_of_Superfund_sites_in_Cal...

https://www.epa.gov/superfund/search-superfund-sites-where-y...