I hadn't thought about that - YouTube accounts are tied to personal Gmail accounts, etc.

One way to preserve precious videos is to store them at the Internet Archive. Go to the Projects page and find information about what and how to upload it. You may have to download things from YouTube then upload them here. There are ways that organizations can archive things and lots of types of projects. And as always - it is another great place to donate cash. Just like Mudcat and Wikipedia and some of your other favorite crowd-sourced valuable resources. I have a few old movies on VHS tape that are not available in any library or streaming sites that I digitized and uploaded. I don't claim copyright, though most of them are old enough that it isn't a problem.