I didn't have anything against the Jets until Rex came into town. It has nothing to do with the stupid big brother little brother thing that he made a big deal out of. There were plenty of years where the Jets were good and the Giants were struggling.
It's hilarious that he feels compelled to state that the Jets have never given him a dime.
I submit it would be significantly more unusual if they ever did.
The Jets used to be like the Mets... You couldn't really hate them... just feel sorry for them (I as a Mets fan see no reason why any fanbase other than the Phillies would hate the Mets...)