Wahhabists-Salafists may well be the dangerous ones, I'm not an expert.
There are supposed spiritual sects such as the Sufis. I'm not aware if they do anything such as the radicals we hear about.
So, making a blanket statement may well be wrong, I could be wrong too. Just throwing that out for conversation.
From what I've read, the country with the largest Muslim population in the world is Indonesia and believe it or not, I've seen them receive some decent ratings concerning freedom.
Even at that, they are above China and Russia by the Freedom House ratings (which is not gospel but it's something):