They have shut down BLM pages? BLM irrefutably spreads hate, especially towards cops, even black cops, and their actions have gotten lots of cops killed. Many of them openly spread racial hate directed towards whites including the Dallas BLM shooter who killed 5 cops and said he wanted to kill white people and white cops in particular.

If they shut down a vague classification of people like holocaust deniers, which is like shutting down flat earthers, then clearly they should shut down an organized hate group.