How the f*@! do you look at ANYTHING in D&D and be like "hmm, yes, this part is based on bigotry, myes". last I checked there is a human race in D&D so if anyone finds an issue with a fictional race and how they are portrayed in a fictional world then they need to go rethink their entire life. If you see ANY similarities between fictional races, like drow or orcs, and any RL group...YOU are creating those similarities and seeing connection where there are none. In all the D&D groups I've played in, no one has EVER even hinted at a connection between any RL minority group and any race in D&D.