I think its:
Baba - Norwegian - Big dumb strong and white (at least not a Swede)
Doodoo - Irish/celt ( same difference, extreme white ppl with red hair and no souls)
Sorcy - She a hairy Middle eastern/Persian bitch like Kim khardsian
Zon - South eastern European/Slavic/Greek (the land of 9 foot tall DDD titties bitches at least according to blizzard)
DinDong - Black (get it? DinDong)
Sin - Asian ofc (Likely Chinese or Japanese since theres 100s of Asian cultures but theres really only 2 according to 90% of the ppl in the world, Like Mexicans and latino folk)
Necro - American imo since we going to hell of late anyhow >.>
It not racism if u hate every1 equally, so in the act of fairness , the Cow King is Samoan
According to Jon this is the Diablo 2 char races