so... why monero dev seem so obsessed with law and regulation

what would happen if law and regulation forbid anonitmity
Which monero dev do you think is obsessed with law and regulation? If you are referring to the starter of this thread, he's not a monero dev at all. If you mean me, I've made a few (I think 3-4) comments here but I'd hardly call that obsessed. Some awareness of law and regulation is absolutely necessary to understanding the world whether you agree with them or not, as they do exist and affect how people behave.