The term pit bull is in NO way comparative to the N word.
The term pit bull is not a shortened version of "American Pit bull Terrier"
The term pit bull is a legal term that encases "pit bull type dogs" . It was developed by lawyers after the majority of their dog bite cases were by "pit bull type dogs"
This includes but is not limited to :
Staffordshire Terrier, American Staffordshire Terrier, American Bull Dog, English Bull Dog, American Pit Bull Terrier, Rottweiler.
When Pitbull Advocates argue that their is no such thing as a Pit Bull dog, they are right, and are arguing with no one but themselves. A Pit Bull is a group of dogs.
My stepdad is a lawyer and aside from family law, he also does insurance claims on dog bites. In all his dog bite cases, he has only had one case of a "bite/attack" that was not a Pit Bull type dog. It was when a great dane jumped on a 2 year old and knocked him over and cut his head open.
If you are really searching for a synonym for "Pit Bull", "Chinese" would be a great word because Americans group all asian people as Chinese.
I hope this post was informative and helped you to understand what the term "Pit Bull" really means.