I would consider going to https://www.cc.com/shows/the-daily-show when Jon Stewart returns (that man has such grace and class, nobody since comes close), if they offer full-episode videos within a week of airing whereas YouTube does not. My point here is that there needs to be a REASON to go somewhere. YouTube combined both the "video hosting" and also "content aggregation" components, so even if we replace the former - and yes, some of us really WOULD choose to go to 8 different websites, for 8 different pieces of content that are worthwhile - it would get that much harder for someone to even know that the videos on the other places exist.
On top of that, when you just happen to be on YouTube, it suggests something that you might want to watch - a related video, e.g. George Carlin perhaps - and you can enjoy watching that. Whereas 8 different websites are going to have at most 1/8th of the content, and probably several orders of magnitude less than that realistically. So as long as the ads are not TOO burdensome - let's say limited to 5s each and at most 2 of them - they will "win".
Also, I really do want Jon Stewart to get credit for my having watched one of his videos, yet watching the identical video from like Vanced or Piped or something deprives him of those tracking metrics, which are worth a lot more than mere money (which at this point he'd likely just donate to charity or some such).
YouTube wormed their way into our hearts, like an abusive spouse, and now just dares us to divorce them - they push the edge as far as they possibly can, knowing that we hate them now yet not caring one bit, unless enough of us will ACTUALLY go. At which point they'll lawyer or buy out the other place that we would go to, in an effort to drag us back in, kicking and screaming. It's a horribly abusive model for a "relationship", where our consent really doesn't matter at all, only what they can get away with, by any means necessary. And the sad fact is that many of us have greatly reduced the amount that we watch such videos entirely, but that makes next to no impact on them at all. So long as they can sell US as the product to advertising companies by being "THE" place to put their ads, they will continue their parasitic chokehold on our society.
I like Lemmy too - it is not even trying to replicate other social media sites (well, it is but it cannot succeed, so we accept that about it), and while it has enormous technical hurdles, e.g. every single time I visit my instance in via a browser, whether desktop or mobile, I have to re-login again, and sometimes (rarely) even while browsing internally. That's... not ideal, though it's still a million times better than the toxic filth crowd that is Reddit (having more to do with culture than technology ofc, and yet the two are not entirely unconnected). Whereas other places, such as Mastodon, just seem doomed internally b/c by their very nature "everyone else" has to go there too or it just won't work. Otherwise, you still need like a Xitter account to follow them, and a Facebook account to follow them, and so on (I actually do not have either, but I understand that some people will feel the need to).
Buying in brick-and-morter is facilitated by having a car, even in a city, otherwise it gets really rough trying to go without that, especially for even the smallest furniture items like a chair that you'd basically have to pay for delivery. It can be done, but does get difficult.
Back to YouTube though, yeah you go where you can find the goods. I haven't used torrents for almost a decade, ever since getting a letter from my ISP about usage of those tracked ports. Fortunately streaming - yes I literally have a Netflix account, plus the occasional whatever - covers so very much ground, if not all, and for the tiniest fraction of the amount of effort involved in keeping up with things e.g. setting up and paying for a proxy. It's literally as easy as searching for 1-2-3!:-P
Hold me, I'm scared:-P.