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/
Now, I do like some anime and manga. But I automatically assumed it to be the typical dry humour he does. Like he straight face tells you you are Satan or whatever.
Or at least that's how I understand certain things he does.
Then again, I am too old to really care if people tell me I am going to hell for watching a show about some innocuous shit.
Yes it is his dry humor. He might as well be British with how dry it is lol. I am much the same way hence why I first started watching him way back when he had just started.