So the U.K. say they have police searching social media for "hate speech" and other ill-defined stuff? They do it here. The question is do they focus on English language (re)tweets etc?
Here in Sweden, I heard years ago people who can read e.g. Arabic saying that the language in many such groups (living in Sweden) can be vile, racist, hateful, sexist etc and nothing is ever done about it.
There are also private small organizations who hunt Swedish language post, and get govt money to do it.