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It is when people forget abuse and hatred that historuy repeats itself - that is why we make sure the Holocaust is remembered. I don't advocate the constant stirring up of hatred or dwelling on it, but we do need to remember where things came from, remember how people suffered and why, in order to avoid it happening again. You are right, obviously, that some people use words differently, but nevertheless, if the word has been used aggressively, we should acknowledge that and remember it so that it doesn't happen again. There is nothing OTT about racial abuse. Many many people have died because they were the wrong colour or religion, or group, or class, or whatever. Oh so recently Rosa Parks refused to give up her seat on a bus and we were made very aware of something that should be remembered so we don't make the same mistakes again.