We've had plenty of wars since globalization came in post-WWII though. Its impossible to know what wars would have happened without it, and how much war may have been prevented due to trade rather than the threat of nuclear war, for example.

Those were good wars, though, apparently, since they bolstered US dominance and the spread of a certain flavor of "liberal democracy" based on progressive politics and consumerism.

I could have sworn they were bad wars when they were happening ("No blood for oil"?), but opinions on that seem to have shifted all of a sudden for some reason.

I don’t think very many people have flip flopped to “actually the war in Iraq was good.” How many examples of this can you point to?

Economic dependencies also start wars. Even if trade exists, sometimes they don't like the terms.