I dont know about his knowledge, really, but I watched a few videos when shopping for my most recent phone and found his reviews to be a bit shallow and personal, not particularly objective and somewhat biased.
But i would like to say, the number of views a youtuber gets is not directly related to the quality of the entertainment other than it has to appeal to the most people in order to make it. That often leaves a bland taste to the videos. Its true of youtube, of music, of film… or any form of media really. You dont get popular by being extremely talented and nishe.
It is also not directly related to being smart. You only have to look at someone like elon musk to see that. Hes, frankly, an idiot. But he has done very well for himself to a point. Obviously, he’s fallen off now,
Fact is, not agreeing that Marquis is a good youtuber is not equal to being triggered, and its kind of ironic coming from the white knighr who cam running to his defence on a fairly obscure message board. :)