Well, I sure hope this doesn't come to be. I don't wanna use their official website, the 3rd party tools are great! But YouTube has become an essential part of my everyday life…
And yes, I have looked into alternatives. They lack what YouTube got, which is the creators I already like (pretty much all of them exclusive to YouTube). Best I could get is copycats. You might be able to find something similar, but not the same (unless you like tech, I guess. If all you consume is tech, you won't lack options (especially if you don't care for specific creators))