>>513176771
This would only happen if they were all suicidal in the first place. Like maybe they are suicidal club and they place a vote at the last minute just to make sure everyone still wants to drive off the cliff. So they do it.

Or maybe some world-ending event is about to happen like the Earth's waters are about to evaporate and everyone's about to die a slow heat death, so it's better just to drive off a cliff.