I'm glad you brought it up. I've always been unnerved by the Christian fervor to proselytize and indoctrinate- sorry, "save" unbelievers by forcibly converting them. These ideas neatly tie in with the colonial mentality of "bringing white civilization to the barbaric jungles" of Asia, Americas and Africa. At the same time, their belief that "the natural state of man is to sin" provides the perfect excuse/rationalization for the atrocities they commit along the way. You can see in Even today, we see the Church's practices continue in the form of cultural genocide in Canada.
This universalism, this savior complex (tellingly, also known as the Christ complex) is practically codified in Christian holy texts. The West's insistence with being "the one true way" and "there is no alternative" (TINA) is so unthinking and dogmatic it feels to me impossible to be just mere hubris. This exceptionalism has somehow so deeply ingrained itself in their psyches it's become a fundamental part of their worldview. What do you think will happen when a nation of godless savages achieves common prosperity (for the West, a utopia considered to be unattainable) faster, more peacefully and morally than the West ever could? What happens when they are forced to acknowledge that their precious "civilization" is just another parasitic, meaningless culture among many? There will a mass mental breakdown on the societal level.
I hear what you are saying, and agree completely.
In the end, it is no big deal.
People go broke all the time.
Then they get used to it.