There are many content creators on YouTube who have gone silent or died, two years from now all those videos will be lost like tears in rain.
> At the moment, Google is not planning to delete accounts with YouTube videos. (That would be tricky as some old abandoned clips might have historical relevance.)
[0]: https://9to5google.com/2023/05/16/google-account-delete/
It feels like a small leap to go from deleting a person's photos, documents, and emails to deleting their videos.
Deleting private content and deleting public content are two entirely different things. There's zero reason why the former would imply the latter, and many reasons why it wouldn't.
Archive everything.
This is what this policy announcement says.