I only got as far as when all those people dressed as Rick started chanting "PICKLE RICK" before I turned it off in disgust, but if he's making the point that people who are so vehemently against the show are also a cancer, then he's not wrong.
Seems to me there's a tasty irony in all the people who think they're smart because they don't watch a show that people who think they are smart, watch.
I get it, well done. You don't like Rick and Morty. Neither do I much, but I don't act as thought that's supposed to be some sort of badge of pride.
People who post the R&M copy pasta about how Wubalubadub dub is some reference to russian classics are essentially the 2017 equivalent of people who posted "everyone who dislikes this are Justin Beiber fans xD" or "Still a better love story than Twilight lol".
It's the weirdest form of virtue signalling.