"Retarded" as an adjective is one thing, but "retard" as a noun used as an insult is comparable to nigg-r, fagg-t, etc.
Comparing the word "retard" to the n-word is really the ultimate example of clueless whiteness.
Tell me, when were the mentally disabled ever:
-Treated as property to be beaten, whipped, tortured, raped, etc. etc. at their owners' mercy
-Denied the basic rights to vote, of freedom of expression, of freedom of speech, etc. because they were mentally disabled
-Villainized as barely-human, degenerate rapist monsters in
critically acclaimed motion picture works-
Brutally tortured and killed for flirting with non-disabled individuals-Savaged by police dogs for peacefully marching for their rights
-etc. etc.
I mean, dear lord. I know it is not easy to get by as a mentally disabled person in this country, or any country. But the fact of the matter is, the mentally disabled in this country have not experienced a FRACTION of the oppression blacks have, and trying to make that comparison just betrays an utter lack of understanding of this country's long and tortured history of race.