This Twitter thread is just really really bad. The argument it attributes to Benjamin is just not what his essay says at all. In fact, Benjamin was a pioneer in what we'd call "media studies," and he wrote about popular entertainment long before the rest of academia took that sort of thing seriously.

And if that were all that were wrong with it, it'd be a petty criticism, but this attitude--of assuming every critic is an elitist snob--just pervades the whole thing. Critics don't hate Thomas Kinkade (dude gets his name wrong, also, twice) "because he mass produced his art"--so did Warhol, so do most modern artists on some level. They hate him because his work is kitschy and boring. It's the elevator music of painting.

Contra the author, comics are taught in higher education. There was a whole furor roughly a year ago because religious students at Duke were angry about being assigned Fun Home. There are academics who specialize in science fiction, who write about comic books. This entire long thread is against an enemy that doesn't exist anymore.