So were the terms "Idiot", "Moron" and "Imbecilic". And, even the once woke term "special" is now an insult. "Aren't
you special!" "He's
special".
The truth is that Humans are programed to view mental deficiencies as punishable aberrations. This was likely a heard or pack survival instinct where such creatures took too much energy and resources away from the pack to keep alive, endangering the entire pack. We still to this day demean others due who have inferior intellectual capabilities. I would say nearly everyone on this forum engages in this type of behavior.