You are blatantly embedding a false premise here; that the goal is or should be world peace.

That is an absolutely inane stance to take. How about instead of the obviously unattainable and unrealistic goal of "world peace", we just go for "more peace", or "less violent death" or similar goals. It is very hard to argue that American hegemony has not significantly reduced conflicts around the world. Not all of them, not equitably, and generally in pursuit of economic rather than ideological interests, but there is basically nothing to be gained by opening up the US to actually being threatened by competing powers.

You say that as if “world peace” was an attainable goal in any realistic timeframe. War doesn’t exist because people “hate peace”.

I didn't bring world peace into the thread, but at any rate there's also the saying that "All war represents a failure of diplomacy," which I tend to agree with. I also think "are indifferent toward" should replace "hate" there.