This feels a little like an empty gesture seeing as I’ve gotta keep a google account to use docs, the only google service I actually use (h/t @FastMail@twitter.com), but it is possible to mash that delete button folks: https://www.wikihow.com/Delete-a-YouTube-Account #DeleteYoutube
How to Delete Your YouTube Account: Desktop & MobileA user-friendly guide to removing your YouTube content and deleting your channel permanentlyDo you want to delete your YouTube account or channel? You can easily do so from YouTube itself or your Google Account settings. Keep in mind that...wikiHow