There's no need to make assumptions. It's easy enough to check a channels demographics if you're curious.

The video was made for the benefit of his subscribers, since he has 2 million+ of them, so he got a lot of people asking if he was doing a review of the new movie and that was the easiest way of responding. You should be angry at whoever the morons were that first got upset about his video and turned into a viral…

It's almost as if this guy has some kind of superpower where his soul isn't destroyed by words people write about him online.