Why are white people expats when the rest of us are immigrants?

Expats or migrants? In the lexicon of human migration there are still hierarchical words, created with the purpose of putting white people above everyone else. One of those remnants is the word “expat”. Related: Posh white blokes: holding back the struggle for a fairer world? What is an expat? And who is an expat? According to Wikipedia, “an expatriate (often shortened to expat) is a person temporarily or permanently residing in a country other than that of the person’s upbringing.