There are a LOT of children out there who giggle at incessant screaming and rape jokes. These children aren't smart enough to install Adblock for YouTube.
Majanew I stumbled across his channel about a week ago and then realised this was the guy I've heard being mentioned a couple of times so thought I'd watch for a bit.
I have yet to understand why there are so many who would subscribe and watch that crap.
There's your answer to PewDiePie's 7-figure / 8-figure salary.