Linux

I don't know what the Cali gov was thinking

But it makes sense to me, based on the commercial incentive. It's not that FreeBSD doesn't form the basis of products that will need to comply with the law (whatever Apple calls their desktop OS for instance), but FreeBSD itself is only for the leet.

No, you don't have to be a genius to use it, but you do need to be very weird, in that you want to use your own actual brain to solve problems, and you want to fully understand what the thing is doing, from bootup to shutdown. If that's you, you're a very odd person, according to many.