You completely ignored both my arguments. If you don't understand them, say so. Your theory asserting a 'certain' case for undercounts is in fact stupid, because you assume there are no, zero, none, nada undercounts and only considered over counts. There will be both.
And I have no idea what articles you are talking about. You know how to link from WUWT hacks pretty well, so give me a link proving the author's case of a case for it being 'categorically true' that there are over counts in the U.S. I'm sure you cannot, but just say that, versus referring to "the articles" etc. Which one? How does this unknown article make the unknown case for it being "categorically true" that there are over counts?
Second, I know that 6% list only COVID. My point was I don't see how a death certificate listing only COVID is complete because COVID isn't actually an immediate cause of death. COVID ==> heart failure or liver failure or lung failure or stroke, or heart attack, etc. so any death certificate listing only COVID doesn't tell us how the person died and is as far as I can tell INCOMPLETE. It matters whether someone died of stroke, OR lung failure OR liver failure OR heart attack, etc.