Gore carried NY by a much higher percentage than Hillary did in 2000. So there's no gain by having Hillary at the top of the ticket. In fact, having Hillary run, might actually make NY competitive for the GOP. Bush barely lost a number of states - do you really think that Hillary would do better than Gore in New Mexico or Wisconsin or Washington or Oregon?
Washington and Oregon? Yup. The 2000
election/tossup was balanced on a dime.
I wouldn't want to bet.