The same people pissing in their boots about nuclear war with Putin now are the first ones who "can't imagine" why neither Britain nor America ever stood up to Hitler until it was too late to stop WWII, because they'd have seen through that appeasement and isolationist malarkey right off.
Uh huh. And I have a bridge for sale, cheap.
We faced down a potential nuclear war every day with every Russian leader from Stalin to Gorbachev, inclusive. It turns out they didn't want to eat a mouthful of shit and ashes for the next millennium either. If you're going to talk geopolitics with grown-ups, start off by growing a spine and a sack. Some of us have seen this game played most of our lives, Baby Ducks. And the Ostrich Strategy doesn't play.