I wasn't ignoring the question; I think I was mistaken about what people were disagreeing with.

I was making a point I thought was self-evident: that if you're already capable of creating "3 quality videos a week" (in the words of the original commenter I replied to), you'll be able to attract a growing audience for it if you persist with the content creation and audience engagement. I.e., good product + good marketing -> long-term success, which is how creative/entrepreneurial success always happens.

I later realised people seemed to think I was claiming that any person, even one starting with below-average video production abilities, could eventually become as big as PewDiePie if they just "try hard enough". That's not what I was claiming.