Let them become as radical as they can, maybe they reach above the highest ethical levels of free-speech society to undertake serious action, and be done with the extremists for good. There is no other way to solve it, it seems. Better have another bloody war for both side once and be done with it, than extremists spoiling blood on free-speech people, while they don't dare to do anything back other than DISCUSS IT UNTIL ETERNITY.

Disclaimer. I'm not part of either party, no extremist nor full freedom. When I can, I'll withdraw from mass-society and live in peace in a small local medieval eco-village, focussing on survival rather than revenge and power. Mass-societies just screw the planet. Until then, sarcasm all the way .