Dervish said
By that argument, calling somebody Asian is dumb because of the slight feature variance and skin tone between nationalities. Likewise, a Mediterranean white person typically has a more olive complexion and darker hair and eyes while a Nordic white person tends to have lighter eyes and hair with a paler complexion. Or heck, a Native American can range anywhere from a South American Incan to an Arctic Inuit, but you still consider them Native American. If I saw you and were asked to describe you, I'd just say black. I'm not going to know where your family is from any more than you know where mine is from. Plus, I'm pretty sure most government forms that ask for your ethnicity aren't going to accept Louisiana Creole as a response. If everyone nitpicked and enforced what people called their ethnicity, we'd have to memorized literally thousands of different ethnic permutations when a simple generalization works a lot more efficiently without being racially insensitive in the slightest. Simple, "ethnic minority" works fine as a catch-all phrase, because it works for any society. If I lived in China, I'd be the ethnic minority there. Of course, it helps to look into a particular situation closely before jumping to the conclusion that everyone who happens to be a different race than the majority is suffering the same slights and inequities as another just because they're not a majority group. As with anything, knowledge is key and while it's good to champion the rights of the under represented, it's good to keep in mind that not all struggles are created equal. For example, an Asian isn't going to be effected by native land disputes or demanding compensation for residential schools, a black person isn't going to be suffering from the same discrimination as an Arab in a post 9/11 world, and so on. It's part of why I'm not a fan of using a "catch all" term for non-whites because I kind of feel like if you start to lump everything into one, the lines start to blur a bit and that leads some people to adopt an "us verses them" mentality, which is awful.
If someone asks for my ethnicity then I tell them that I am an American and if that's not enough then I'll say I'm black if calling myself a Louisiana Creole is not enough.
I completely agree with you on the matter of the term people of color lumping everyone together. The problem is that Americans have a very simplistic view of race where everything is either black, white, Asian and Hispanic. One of the biggest flaws with the term people of color is how can a pale skinned Asian be considered a person of color if their skin tone is the same as caucasians? People of color to me is just another ignorant term to turn the race and ethnic problems of society into an us verses them argument which doesn't solve problems.