mulatto? bigoted? I didn't know that but I haven't heard the term in ages.. You say this but you did not tell us the "correct terminology?
And btw, my kids can be mule headed - what should I call them? :o)
I believe mixed-race is the current P.C. terminology. Though, I prefer just plain old human. As a right-winger, I total disagree with classifying people by race to begin with for any purpose other than health and medicine.
Let me ask you this, if your children were of mixed race descent, would you want them to be called mules or mutts? Would you prefer words that are single race/religion specific, like the N or K word?
There is no difference here, the word is used to demean a group of people as sub-human. Most people don't even realize it because no one has ever challenged them on the use of the word. You rarely hear it used.