Since we've drifted so far from the point, let me bring us back.

You are an imbecile. A low intelligent, dimwitted individual. Someone who lacks understanding of subtext or really any basic reading comprehension. You are an overall drain on society. A moron. A few fries short of a happy meal. Your elevator doesn't go to the top floor. Lights are on, no one's home.

Now, you see how I was able to easily insult your lack of intelligence without once calling you retarded? So pray tell me, how would removing that word have changed this interaction at all? I'd still be calling you shit for brains without using the dreaded "R-word". Do you maybe see now how it's not the language, but the emotions of the person uttering them that matters? That you need to change my emotional state, not just restrict my use of words. Because as I've clearly pointed out, I can still call you a fucktard without using "retarded".