A Nazi is way more dangerous than an Al Qaeda member and yet we would have zero problem taking down a terrorist website because it can radicalize people.

Radicalization of people is quite literally spread like a disease. The internet has allowed this disease a means of spreading unlike ever before in the history of man.

Being tolerant of such communities that call for the violent overthrow of the government, institution of a fascist government, and the genocide of entire populations of people is like allowing a cancer to spread.

This train of thought is quite literally a cancer on humanity that needs to be chemo'd out of existence.

It's literally worse than Child Porn by many orders of magnitude.