I can’t remember where but someone posted something good about Americans having this attitude because they’ve never really suffered. All the other great empires have literally had to go to the trenches to survive (think British, French, Russian in Europe), whereas it’s largely been untouched. Even Pearl Harbour, 9/11 were cosmetic and the biggest risk to the country was always and is always internal. Therefore geopolitics is simply a game with no existential impact for the states, unless of course they start a nuclear war with China or Russia.