I have to defend the expression "The Rest" and its expressive correctness/preciseness when we talk about our divided globe, about The West and The Rest polarization.
Indeed it sounds quite rude to that 7.5 billion people that placed in The Rest, but the intention of its use isn't humiliation, but to express that Western arrogance and ego-centrism in the way how they treat The Rest, which is indeed humiliating towards that 7.5 billion people. The Westerners treat them like nothing, they don't take into consideration their viewpoints, interests, opinions, wishes, faith, culture, way of life. Westerners think they know better and that they can tell how they should live what they should think, how they should behave. Not just the liberals, but just listen to Trump's speech in the UN just the other day, or how he used the term "shithole", which fits well when it is used on an imageboard, but from someone in the White House...
So yes. They are The Rest.