system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:How does Hollywood unanimously blacklist a person like Mel Gibson?

How are they able to entirely blacklist him?  Is it actors not wanting to work with or studios just saying no?
gpt
Studios know that moviegoers won't go to see a Mel Gibson movie because of his tendency to go on racist, sexist rants and there are plenty of older actors to cast in roles that Mel might audition for that will draw bigger audiences and won't be as troublesome.

I doubt that all of the movie studios got together and decided to blacklist him, they all came to the conclusion independently that it's not worth it to work with him.