Lol, news flash. Western white people are not half the planet. Never have been. They are a significant minority.

You don't get to decide if the West is a useful term. You have to listen to the global majority on that. And they demonstrate it's utility by using it.

The foreign policy establishment is tiny. There are millions of people screaming at their TVs, lynching black people, shooting protestors, buying guns, watching and producing military propaganda movies, watching and producing TV shows about hero white people killing Asiatic hordes, celebrating the European genocide against indigenous people, calling water protectors terrorists, baying for the blood of Iranians, Russians, Chinese... Millions who thinks dropping nukes on population centers was the best course of action. That vacation in Vietnam and marvel at how backwards they are and don't think Kissinger is that bad.

It's not like you and your family and friends and countrymen are just normal people who weren't raised for 20 years on genocidal indoctrination by your parents, grandparents, teachers, books, TVs, movies, politicians, historians, memorials, and religions. You just don't think you were.

It's not the foreign policy establishment. It's the entire European project for the last 600 years. You don't get out of it by just saying "it's only the power elite". If the US had a popular revolt, I guarantee you that it would result in major mass killings of the marginalized, because despite your fantasy, the majority of Americans are part of the death cult.