I cannot affect the actions of other people except by argument, writing books and articles, and replying to questions such as this. I can only do what one can do, but what one can do I will do. The less of it the better. We should work for decentralism all the time. We should decline to cooperate with huge remote governments.
People can achieve an awful lot by peaceful non-cooperation.
I am not a member of many groups, and I do not know of many.