There’s a different video on both of their channels. Both are worth a watch.

How could hosting other people’s work and at most giving them a cut of the ad revenue be more expensive than

A. Paying for streaming rights to other people’s work. B. Creating your own works And C. Paying to host all of the above. ???

Unless you’re saying that the hours streamed from YouTube is so vastly more than any streaming service that it out costs all the other costs Netflix etc has in licensing and content creation.