They can, it would result in an even bigger backlash. They probably just go for the "it will pass, they'll come back" approach instead of going full on against

They can, it would result in an even bigger backlash. They probably just go for the "it will pass, they'll come back" approach instead of going full on against the people. They would also need to find moderators for those subs, which is not that easy, those people are often very committed.