I presume "kanaka" (given Polynesian consonant shifts) is cognate with Maori "tangata", which just means "man" or "human being" and has never had any racist usage in any language that I've heard of.

You get "fellow" used in Australian English, mainly in the context "blackfella". What do Aborigines think about that? I don't think it's anywhere near as oppressive as American "boy", but I don't really know.