Youtube only got to where it is now by Google plowing billions of dollars from a different monopoly into it. Most of the other major "free" consumer tech products gained their market share by burning way more money than most competitors could afford.
There are YouTube channels i watch, but it's just a fun distraction. If they went away I'm not sure I would care that much. The educational stuff is handy, but that is all out there in different forms on the web anyway.
I'd like to be wrong, but so far the ad model is the best business model for such content.
I signed up for Kagi search recently (I'm not affiliated with them in any way, just a satisfied customer), and aside from searching reddit, I consider their results to be superior to Google's. One of their main signals for downranking is how heavily ad/tracker-laden a page is.