It is extremely obvious that he is being flippant yet geniuses really sat in the comments arguing about whether anime is satanic and using his sarcastic joke to "prove" he is a shill or criticize his conservative opinions
https://kotakuinaction2.win/p/15K6SmwTu2/matt-walsh-gets-asked-whats-your/c/
Exactly although I am not a fan of anime, I prefer reading over watching, I do not see why people get so bent out of shape if someone simply does not approve or like their hobby plus he was obviously not serious