Apparently no one actually read any of the news articles about this.
He's not doing this because the Jets suck. He's quitting because of the hostility of other Jets fans towards him. When he wears a Sanchez jersey, other fans boo him and start arguments with him. He said some of these encounters almost lead to physical altercations (as you can imagine would happen with loudmouth Brooklyn hotheads). He said he is afraid one day he might lose his temper and do something he'll regret.
Yeah, the Jets fans have accused him of being a paid shill and he has had several physical altercations already. I don't blame the guy one bit.
Some of the bitter Panther fans responses were uncalled for.