I've really been turned off by their general arrogance.
Eight years ago there was true joy when they won and in their celebrations. Now they are doing canned celebrations mocking other teams/countries, running up the score and generally feeling like they are "special" somehow.
It happens a lot when a person is successful or is praised over and over. They become entitled and start to feel they are above criticism.
It's the TO, Ocho Cinco, Bill Belichek, Greg Popovich and any Hollywood celebrity that lectures us.
A big turnoff to me.