After Hurricane Katrina, some people argued that we shouldn’t rebuild New Orleans, not simply because it was below sea level but because the city was economically and politically dysfunctional. The same argument could be made for the New York City subway system, which was so heavily damaged by Sandy that repairing it could cost “tens of billions of dollars.”
You could always swim to work.
It’s not just the subways, of course: the entire transit system has been damaged. But in the suburbs, at least, buses on streets can easily substitute for rail.