Davis Mills put up 41 points today on the Chargers. EVERY NFL team is capable of winning, even with crappy QBs playing. It's an accomplishment every week to get a win in the NFL. It's actually pretty hard to beat the bad teams.
The six teams you listed have more than 30 wins among them. Did they beat high school teams?
And, honestly, evidence actually indicates you're worong, at least according to the analysts writing about the NFL right now, who know a boatload more about football than you do. Listen to Cosell, or Baldinger, or Daniel Jeremiah, or Zach Berman, Sheil Kapadia, or Bo Wolf on the Athletic. You must be Michael Barkann's burner account.