self-extinction
Examples
Experience as well as common sense indicated that the most reliable method of avoiding self-extinction was not to equip oneself with the means to accomplish it in the first place.
Europe by the end of this century will be a continent after the neutron bomb; the grand buildings will still be standing, but the people who built them will be gone. We are living through a remarkable period: the self-extinction of the race who, for good or ill, shaped the modern world.