If Trump wins and dissolves NATO, and Russia, China, North Korea and Iran start a massive conflict as an axis of evil, tens of millions, if not a hundred million or more could die. More, if nuclear weapons are used.
40-50,000,000 were killed in WW2. And that was with ancient technology, by comparison. Going to Normandy and seeing the endless rows of graves stretching as far as the eye can see shows the incalculable loss of global war, something that must not ever be repeated. Far too many paid the ultimate price to keep evil at bay.