If you look at it as an industry for a moment, it would probably be better for them to move north, to Oregon or Washington state. They are still very liberal up there, so would permit the industry to operate, but California is rapidly spiraling into an abyss for any business.
This also raises another point, in that the adult film industry is very closely related to the non-adult film industry. This means that it will send a very strong message to the non-adult film industry to bug out as well.