Rigorous freedom of expression advocacy, applied irrespective of societal taboos and dominant attitudes, is always political because it always has an effect towards leveling the playing field between powerful state-backed corporate and institutional forces and the individual.
Discourse, including the extremes, is the main democratic mechanism against spontaneous advances of totalitarianism.
That is why the American Civil Liberties Union, for example, has
defended the freedoms of both the KKK and the Black Panther Party, when
these freedoms were most at risk. Any group or individual that most
needs protection to express, from state-backed threats, should be
protected to express.
Otherwise, democratic discourse is impeded
and society suffers, to the benefit of dominant power. A stale and
thought-moderated "safe space" society is a dead and totalitarian
society having no push back against increasing control and exploitation
by the top.
Civil liberties activism is a battle against
pernicious totalitarianism. Expression is a fundamental human right. We
need to hear our worst fears in order to express solutions.