Well, if it turns out that "genocide is actually good" is correct we're all doomed.
Less flippantly, we may not have any special access to moral rightness; in fact if there's one important conclusion of 20th century moral philosophy it's that there's no exogenous moral truth to be found; but we definitely do know a number of things are wrong and lead to moral disaster on a colossal scale. This is why you have to ban racial supremacists. It's happening all over again with the Rohingya.
There is certainly a large band of "extremism or acceptable questioning of the status quo", but anyone running a discussion forum has to be aware that they can't disclaim all moral responsibility for hate spread on it.
Less flippantly, we may not have any special access to moral rightness; in fact if there's one important conclusion of 20th century moral philosophy it's that there's no exogenous moral truth to be found; but we definitely do know a number of things are wrong and lead to moral disaster on a colossal scale. This is why you have to ban racial supremacists. It's happening all over again with the Rohingya.
There is certainly a large band of "extremism or acceptable questioning of the status quo", but anyone running a discussion forum has to be aware that they can't disclaim all moral responsibility for hate spread on it.