Your point about Black Panther is kinda dumb. RT didn't say down-voting the movie is hate speech. Nobody said that (well, probably somebody said that, but that would be equally dumb. RT certainly didn't say that).
It is just that a bunch of racist pieces of shit are gearing up to hate on the movie, which is certainly fine, but RT is merely saying that if it gets ugly, if they vomit their vitriol into their "review", the review will be deleted.
I have followed you for some time, and this is really the first time I remember seeing you really mischaracterize something so blatantly. You literally read the comment from RT, which said nothing about deleting negative reviews, then you acted like they were going to delete negative reviews.

If you want to debate whether they should delete racist reviews, make that argument. But this was an complete red herring.