England, Scotland, Wales, and Northern Ireland.

[Mars_ax]

The term in the US is specific to white people and therefore racist.

I can somewhat agree with this, but I don't think most white Americans are all that offended when they're called a hick, hillbilly or a redneck, being called white/trailer trash for example is much more offensive, and is definitely racist. I still don't think it's as "racist" as a black person being called a "nigger", that's probably the king of all racial slurs.

BTW, most of the rednecks I know are pretty nice guys, and i'm a bit of a redneck myself.

Questions for you @Mars_ax or anyone else.

How many white farmers do you know that go around calling other farmers redneck / hillbilly / white trash?

How many middle to upper class white city people have you heard use these terms?

How about the rich and super rich?

Also, is racist if a black man calls another black man "nigger"? Or only if a white person says it?

I'm not sure what your point is here @Ghost. Redneck, hillbilly, white trash are terms that have probably been used at times by all classes of "white" people here in the States, some more then others.
F.W.I.W. - I've heard blacks calling other blacks "nigger" fairly often, it's not persay racist, it's just the way they talk among themselves sometimes. Example: An older black man in his late 70's was telling me a story the other day about how his wife of 30 years ran off with a "nigger" (and all his money). He got pretty worked up about it and I think he forgot for a minute that I was white, and apologized. I told him no apology needed, I understood where he was coming from.

So generally speaking i'd say that it's only "racist" if a white person is saying it. I mean think about it, how can it be "racist" if a black is saying it about another black?

I hope this helps.