Agreed. Infantile and basically a slur on people because of their dietary choices. Part of a pattern of language that is basically alt-right bait for young insecure and disaffected men.

Edit: Adding a link to an article I saw on the orange site. The Four Dark Laws of online engagement are a nice little cheat sheet for the patterns you see repeatedly online. Negatively biased language that targets an out group has a virality amongst this audience: https://www.derekthompson.org/p/all-the-sad-young-terminally-online