> How do you explain all of the people and countries who are currently trusting the US and their commitments?
You've never seen a crime flick where the soon-to-be-murdered victim goes "I won't call the cops, I swear! Don't hurt me!"
Who's genuinely trusting US commitments right now? Our most stalwart allies sent troops to Greenland as a tripwire force! https://en.wikipedia.org/wiki/Operation_Arctic_Endurance
If nobody was trusting the country, the economy would collapse.
The Greenland drama was dumb, but there is zero reason to think it’s a next 50 years thing. Is the force even still there, or are they gone? Nobody takes the Greenland thing seriously already, and 50 years have not passed.