On your first point, agree to disagree, I have never heard anyone say the HoF is for famous people. Just don't believe that or there would be different standards to get in?
Secondly, I am not against him getting in. Just don't have a final opinion on Warner.
Lastly, a question... I thought Warner lost his starting job in St. Louis before they parted ways? I also believe he lost his job with the Giants before they planned to start Eli (prematurely than the teams plan, imo) because Warner was playing poorly. Those were the two times I believed he was a backup.