Earlier quoted context omitted.
Wait, what? Did you miss the bit where they bombed North Korea until they had killed about one fifth of the population, and destroyed basically every form of standing shelter? Or the war in Vietnam? Or the support for South Korean dictators, even as they murdered their own people? If that's a contribution to international peace, I hate to imagine what you'd think was a contribution to regional instability. Even on a…
The US has done plenty of terrible things. It’s impossible to be certain of how much of the relative peace we have today is because of the United States. Overall I’d say it’s probably done more good than harm.
I think the one thing east asian states tend to have in spades is pragmatism. The US, on the other hand, is very often engaging in the region for ideological reasons. For that reason, it has tended to engage in bloody, somewhat pointless wars that have often span out into civil wars in neighboring states (Cambodia, for example) or produced traumatized, basketcase states (North Korea, for example, or pre-revolution South Korea).