A metaphor

From a Washington Post article about Republicans fearing doom in November:

There is no sign yet of a mass exodus from the runaway Trump train. If anything, most elected Republicans see themselves as prisoners onboard, calculating that jumping off would lead to almost certain defeat, according to interviews with more than a dozen party strategists, many of whom spoke on the condition of anonymity to talk candidly.

Oh, those poor helpless passengers. How could they have known that that the driver was utterly unqualified to operate a train? And that there never were any brakes?

Related reading
All OCA metaphor posts (Pinboard)