a 75 year history isn't anything to brag about on a global scale, that's a very young country. an unbroken 75 year history as a reliable partner might be something, but if your time as a reliable economic partner only lasts 75 years, that's not very reliable.

the one thing that the US still has is money. countries want to trade with countries that have money, whether they're trustworthy or untrustworthy, moral or immoral. as long as the US continues to be rich, they'll continue to have good trading relationships. we've all just got to hope that this current trend reverses before the us stops being a rich country.