Defensive scoring rankings for the Giants for their 2 Super Bowl wins over the Pats: 17(2007), 25(2011)
In their two head to head Super Bowl years, the Patriots had the 4th(2007) ranked scoring defense and the 15th(2011) ranked scoring defense. As mentioned, the Giants had the 17th and 25th in those same years.
The facts, they do not agree with your assertions.
And of course you have a reason to be biased, the Giants are one of your in-division rivals who's owner also just politicked to take money from your team.