> We have learned through bitter experience that, while free speech is a precious right, it is also an extremely dangerous one in the wrong circumstances. Germans in particular are acutely aware of the disastrous consequences of allowing incitement to go unchallenged.

Have they learnt the right lesson though? What's the alternate history theory here? You toss Hitler in jail after he makes an inflammatory speech to a large crowd, but before he's elected and that prevents WW2?

None of this solves the underlying issue of there being deep political problems in any country that ends up with this kind of leader getting into power. The hope of free speech supposedly being that someone will eventually put their finger on the real cause of the problems and get people on board with it, rather than an unfortunate group being scapegoated.