I'm not sure that it makes sense to compare RMS to (say) suicide bombers. Not all "fanaticism" is equivalent.
I am prepared to acknowledge that he might well be right in his positions on freedom, but he comes across as a lunatic in most of his talks. I have a problem with this; if what he's saying is important, could we not advance a more charismatic, tactful and effective ambassador?
Either way we already have a community of people sharing similar values of open source - I don't think we need a hierarchical leader/follower structure.