More or less of an existential threat than a conflict between nuclear powers because one of them decided to launch a unilateral strike against a datacentre located outside one of their cities just in case it hosted a particularly dangerous chatbot?

Trolley problem. What's worse than all of humanity dead from ASI?

Sam Altman: "Development of superhuman machine intelligence (SMI) is probably the greatest threat to the continued existence of humanity. There are other threats that I think are more certain to happen (for example, an engineered virus with a long incubation period and a high mortality rate) but are unlikely to destroy every human in the universe in the way that SMI could."