I think in that situation, YouTube would take adshare to 0%. YouTube then is just a place to upload videos and make them public. No expectation of turning a pro

I think in that situation, YouTube would take adshare to 0%. YouTube then is just a place to upload videos and make them public. No expectation of turning a profit. For a premium fee you pay YouTube, you could get some of that adshare, and now they're a paid service.