Nuclear war is radiotherapy for the cancer that is the Imperialist States of Amerikastan.
It is too late for surgery, and the patient can wait no longer. The cancer insists on spreading, and the cells that make up the tumour are indifferent to the fact that they, too, will be destroyed when the body they are intent on killing dies.
There is, therefore, no other option. It is literally kill or cure. The world can wait no longer.
If this is the last post before WWIII, it was nice knowing you.