How do you want to do this? Linux is a kernel the world relies on. It powers your car, your fridge, your satellite, your phone, the entire Internet, the army, etc. Nothing comes close to Linux in market share. The distros are built upon the kernel. System76 may have to comply, but the other maintainers don't give a flying fuck. They could even write a small line somewhere on their repo that says "this distro is not allowed in California" and call it a day.