My family doesn’t celebrate it (bc we never did growing up in the UK), nor do I begrudge anyone their freedom. Anyways, happy independence day y’all. If you need me I’ll be sipping tea in the middle of a wide open field wearing my ceremonial red coat.
Sojourner workers are also usually called “immigrants” not “expats”, especially if they are from non-western nations.
Like @kennydidwhat says, there is a race/ethnicity component to it.
An American doctor in Dubai is called an “expat” while a Filipino nanny in America is colloquially called an “immigrant” even if they both fully intend to return to their home countries.