Don't get all asshurt, the stream quite literally says 'dark humor' aka offensive content. Which can include racism, or any other topic which may be considered offensive.
So by default the person who made this meme has successfully did his job.
well, yea. because the black lives matters group are a bunch of looters, they need to be put in there place. but, I'm not saying they should be killed, just put in prison or something.