Singletons of New York City are screaming, “Send help!” The guys and gals of Gotham are going at each other’s throats in a vicious debate over a newly viral dating prerequisite: Men must send a car.  Despite the city’s various public transportation offerings, such as subways and buses, women on the scene prefer not to be seen hanging onto a strap in their glad rags en route to a romantic rendezvous. Instead, diva daters are demanding that their would-be Romeos treat them to a car service — if