This is mainly because the release of this movie caused a lot of trouble to society at that time and now.
If it did not cause any trouble, it stands to reason that this movie would not be strongly blocked. But precisely because it has caused great trouble to many social audiences and to politics as a whole, it has to be stopped.
Evaluation:
This movie can be said to be relatively realistic, and it can combine the reality of society to a certain extent. And although the movie is called Joker, the character in the movie is not really ugly. It's just that the movie term clown can well reveal some of the characters in the movie, and it is very real, so it is liked by many people.