It's absurd to say that Google did not develop YouTube. They acquired it at a point where it was a galaxy-scale cash incinerator and made it work economically using their superior platform.
aka waited for cost of storage, bandwidth, compute to come down below revenue from advertising.
As it would have done naturally anyway
Yeah. I was going to say. I really dislike Google, but what they did with YouTube (whose acquisition I saw as a mistake at the time) is impressive.