Funny, but fortunately not accurate.
Food production is now a big company thing, done by companies owned by those of us who live in NYC. A more accurate rephrasing of your statement is:
"If the people who actually have power and money suddenly didn't, and uneducated rednecks were in charge, things might be bad for people in NYC".
Also, you should be relieved to note that NJ, NY and New England have more then enough agriculture to feed ourselves. It really isn't a Urban vs. Rural argument either, as we love rural folk up here and vice versa. Its really about NYC & New England versus fly over country.