Honestly Facebook would be a fraction as bad as they are now if they blocked all news. I support this and hope they block it everywhere. But racist, dangerous, and crackpot conspiracy theories drive engagement and puts money in their pockets so it won't happen until it's forced on them. The other problem is Groups. The crazies will always find a community online, but where Facebook is different is using their algorithm to suggest it to impressionable people and spread these nutty ideas far and wide. Wish that would shut down too but probably also won't happen until forced on them.