Points to be made here include:
1) None of these five men is an imbecile.
2) This is a place and time in which our world leaders are more demented and less interested in the welfare of others than at any point since, at least, the 1930s.
3) No one know what’s going to happen next. Sure, it could be nuclear conflagration or runaway environmental collapse. It could also be something else entirely.