Antifa, for example, is objectively a much greater threat to life and property, is anti-capitalist, and have been much more proactive in doxxing their political enemies, yet members and sympathizers are highly placed in Twitter, Google, US schools and colleges, the Democrat party, and many other sensitive locations.
Are we to shut all of those down as well while an intensive security review is performed?
Actually, that's not a bad idea.
I'm speaking of the American antifa, which are assaulting, harassing, and doxxing people they deem "fascist" (which is anyone who looks at them funny) and burning down buildings and vehicles. Surely you have watched a news report or read a newspaper in the past several months. Even CNN has grudgingly been forced to honestly report on their activities.
I'm not personally aware of any such actions on the part of "qanon". But if any exist at all, they are without dispute dwarfed by the havoc antifa has wrought.