I get where you're coming from, but as you also mentioned it depends on the purpose of the conversation. I think it was Napoleon who said to never interrupt your enemy when they're making a mistake.

Obviously we're in for a rough few years, and it sucks for the sensible Americans even if they should do more to fight for what's right, but ultimately the rampant chauvinism and exceptionalism is accelerating American imperial decline.

It's a bit like the guy who keeps bragging about how big his dick is. Sure you could tell them it makes the ladies drier than a bag of saw dust, but perhaps it's for the best that you don't stop him.

I know this is a bit controversial, but I think this is why Trump's partly been a blessing in disguise. He's so disgusting that it's become impossible for politicians in allied countries to continue pretending America is a bastion of freedom. They can longer pretend the US considers its allies as much more than client states.