Insulting? If they can afford the rent of Manhattan, they can afford the fruit and vegetables.
I commuted into Manhattan to work while lived in Queens. And I now commute into Manhattan from Westchester. Living IN Manhattan is a choice not a necessity.
I buy fruits and vegetable FROM Manhattan Chinatown on Friday to eat on weekends in Westchester. When I used to commute past Washington Height, I guy fruits from Mexican merchants on street carts, for less than my local grocery store.
Insulting and myopic. Not everyone living in Manhattan is paying market rent. The fact that you are able to pay less for food in their neighborhoods than at some local grocer in Westchester must be of great comfort to them.