Of course nobody in the right mind would consider that they had the money to buy YouTube as an entity.

But that would be a dream many would like to have as YouTube generates more money then Donald Trump has superlatives in his vocabulary. But in order to profit from YouTube you do not have to buy YouTube you can be a person who has a YouTube video that has ads on it or links to things are selling.

You could even build up a channel on YouTube that had lots of subscribers and lots of use which would give you an opportunity to turn those views and subscribers into a revenue stream that would be pretty nice although not quite enough to buy YouTube itself.