And don't forget to write your own compiler, OS, DE, and IDE, lest someone pull the rug out from under you. /s Specialization is at the heart of increasing productivity. Let's say a given person makes awesome travel videos. If that person can find a way to broadcast and monetize those videos with YouTube, Vimeo, or whatever, that almost certainly makes more sense than devoting their time to maintaining their own stre…
Except that so few people make money broadcasting on Youtube, it's very likely they'd make more by learning how to maintain their own streaming platform and using that knowledge ('consulting') to less technical (but more creative) people who think they can make money broadcasting on Youtube.
I suspect such an industry does exist, but it's quite a bit smaller than both the number of people profitably creating content on YouTube and the number of employees of YouTube itself, which tells me that maybe the risk-adjusted returns of it aren't as great as you think.