I really doubt that she makes that much, I think we would have heard about this a long time ago and have a lot more people trying to do the same thing.
From another article "Roughly, a video creator will earn $2,000 for every million views. "And then YouTube takes 45 percent," the Times notes. (The IRS will take its cut of the remainder, too.)"
Read more:
How Much Money YouTube Stars Actually Make - Business Insider