Really difficult to say because it doesn't make many concrete claims. It doesn't mention any regulations or say what chemicals or processes are actually banned. These are not easy things to look up. I can tell you that at least the semiconductor fabrication stuff is false, there are many fabs in California and here's a new one as of a few days ago: https://www.mercurynews.com/2026/02/19/san-jose-tech-nokia-i....
I realize it isn't completed yet but I don't think anyone is buying sites for something that's impossible to build.
Here's another one: https://www.bosch-semiconductors.com/roseville/
I can tell you that your two articles that intended to refute the semiconductor fabrication stuff fail to do so. Both sites were existing facilities and would therefore fall under the granfathered in point in the site.