Comment by LesZedCB

That's correct. And as the reddit execs et. al. have stated, it's not that such communities, whether based around fundamentally hateful memes or not, can exist on reddit. In fact, many morally/ethically reprehensible communities have been explicitly allowed to continue existing. However, when they start moving outside of their communities and harass other communities through vote brigading or doxxing or PMing hateful messages, then it breaches a line (or smudged line) that allows reddit admins to take action.