Not sure if it's still the case but there was a time when I would browse aftermarket performance car parts and a number of them could not be sold in California.
I suspect there will be some products that won't be available in California in the future. But there will be many companies that adapt and stay in the California market.
But having not read anything besides HN comments yet this I don’t expect this to be the reality of the bill, only the reaction to the headlines.