I couldn't care less if a bunch of violent criminals want protection from the consequences of their own execrable behaviour.
If they find a new spot to hide, so be it. If they can find each other, the FBI can find that hidey hole just as easily, and it makes their job easier as the proportion of violent radicals is much higher.
The last thing I'm gonna support is kowtowing to terrorists because you're afraid they might hurt someone. Their actions are not your responsibility. Fuck them and whatever they want. They deserve nothing but mockery and derision. If that radicalizes them further and they hurt someone, so be it, that's nobody's responsibility but their own, for being violent shitbags.
If there's enough of them to win elections, the USA is already dead and what we're seeing are death throes. It's not salvageable, at that point. And encouraging them just gets their numbers to grow, which is what the permissive stances of social media companies have allowed for. Hence the widespread change, as they've recognized their responsibility for this cultural shift.
You've stuck the cart before the horse, to protect and support domestic terrorists.