Most of the complaints from this website aren't about things being outright banned. It's mostly stuff where the regulation is so strict that's it's "nearly impossible". But the regulation seems fair to me wrt what's actually required to keep TCE, asbestos, Freon, chloroform, etc out of our soil and water.

Companies that are complaining are complaining that they can't treat the environment as an economic externality anymore in California. Therefore the price of all of these goods are being subsidized with our health and our ecosystems' health.

I hope more of the world follows California's lead and we eventually have a price of these goods that represents what it actually takes to manufacture them in a fair way