Don’t think it can’t happen here. Diversity is pretty much the State Religion here too. The population has been conditioned to regard ‘racist’ (with racist being defined by the Left of course) speech as an unforgivable offense.
We may not have examples like this one yet, but Hate Crime laws are the first step to criminalizing thought and speech, and we have those now at both the state and federal level. We can be sure that the Republican party will be worthless in defending free speech against Diversity-worship. And even if they stun us and do mount a vigorous and effective defense of free speech, current demographic trends will eventually make it almost impossible for Republicans to hold power in Washington. And once the Left gets an outright majority on the Supreme Court, then there will be nothing stopping these types of trials here in the US as well.
Oklahoma passed a referendum to amend the state constitution barring use of Sharia and international law in our state courts. The hand wringers are suing and trying to keep it from being implemented.
The bad guys are using the laws of nations who have rule of law against those nations.
Don’t think it can’t happen here.