NATO involvement is all or nothing. If we go to war with Russia, it won't end until the world is a cinder. There is no limited engagement. It feels like we all

NATO involvement is all or nothing. If we go to war with Russia, it won't end until the world is a cinder. There is no limited engagement. It feels like we all have complete amnesia about the Cold War and the reasons why so many proxy wars were fought. Nuclear powers cannot go toe to toe without destroying the world, as soon as one side perceives that it will lose a conventional conflict they will resort to nuclear weapons. Even if they try to justify it by a limited deployment of tactical nukes on enemy positions just to shift the balance enough to prevent being routed it will almost immediately escalate into strikes on civilian centres and so the world dies. Does nobody understand this anymore? Just reverse the roles in your head and think more than one step ahead.