The biggest lie, which our entire civilization is founded upon, is that certain people are fundamentally superior to others (and thus have a right to rule). It is because of this lie that we are incapable of advancing beyond a certain stage, once those who stand at the top of our artificial hierarchies are spread so thin they are no longer capable of accounting for the vast numbers they stand above.
This is why globalism aims to eliminate diversity, so that the whole of society can be reduced down to a manageable number of unique groups, to prop up the lie for a little bit longer.