Wrong about nuclear proliferation and MAD game theory? Human extinction. Wrong about plasticizers and other endocrine disruptors, leading to a Children of Men scenario? Human extinction. Wrong about the risk of asteroid impact? Human extinction. Climate change? Human extinction. Gain of function zombie virus? Human extinction. Malignant AGI? ehh... whatever, we get it.
It's like the risk of driving: yeah it's one of the leading causes of death but what are we going to do, stay inside our suburban bubbles all our lives, too afraid to cross a stroad? Except with AI this is all still completely theoretical.