Sigh, almost nothing can survive without money to pay for it. Either through donations, some type of business model, etc.
My day to day "job" is something for the public good and I do it without getting paid for it. But it still has to make money to survive even with that.
A common model is to have a free tier subsidized by the premium users. The free users still provide value to the company, because they're all prospective premium users.
What they are doing is working great... not sure why you would say that. They are the most popular platform, fantastic services and adding more, and easy to pay to remove ads for a reasonable amount of money. Their model is working great from a business and service perspective.
What else do you want?
You want it to be free for you where you don't have to pay anything to use it? Seems like you don't have a realistic view of what it costs to run / build / maintain this.
You're correct that I don't know how to run YouTube, the company, but I absolutely know what it takes to serve video. I'd like to see more people who aren't YouTube operating in the same sector.
Hopefully you can see how the chasm between those two things is like the Grand Canyon :)
I love "the confidence" as I think that is what makes a great entrepreneur who says something like "Oh that is easy, I can do that", cut to 10 years later and a lot of pain, and maybe they have...