The Kremlin has threatened nuclear war to protect itself since the day they got nukes. The U.S. does the same thing. What do you think Kennedy was threatening when the Soviets got as close to us as NATO currently is to Russia? Trying to make the ridiculous point that this hasn’t always been the case is extremely dangerous and even more stupid. That’s a heck of a news flash you’ve got here.
How many times has any U.S. President taken a joyride in one of our nuclear bombers? Or is that just a Soviet thing?