@maynardkeenanx: Not true at all. The majority that watch other play may have the game, not need any help but just want to watch. I don't understand that. There are tons of YouTube channels that are focused on entertaining an audience, not showing them anything worthwhile.
Watch the successful channels and the not so successful ones. There's a clear distinction between both categories that you are dodging(Yet alluded to which @maynardkeenanx pointed out to you.).
If you still don't understand it, that's fine. There are some things in life people will never understand, but that does not mean there is a science behind it(Which applies to practically everything that exists.).