I don't think you can specifically delete your YT account. I think you'd have to delete your entire Google account, which probably isn't a practical decision.
Discussion
Agreed. I have ignored YT. I’ve actually shifted my email to a paid service (Fastmail) and I’m working g to de-google, but it isn’t easy!
No kidding. I also switched to a paid service (disroot.org), but given how many people and services have my Gmail address, I just keep Gmail configured in my IMAP/SMTP clients so I can continue to receive and send from Gmail when needed. I've been hooked into Gmail and its related services since it was in its infancy. Back then, you needed an invite from an existing user to create an account, and you were given 5 invites to share with family and friends. I don't think I could practically excise myself from Google at this point.
Ditto I’m from the invitation only days! They’ve built a model that is hard to escape. Even now Android phone users fail to understand they are all in with Google.