Yes, there should be much more racism and racial conflict.
I'd understand people's concerns if the game would portray light skinned humans and darker skinned humans as being different. But that's not the case. Instead we have fantasy races with no real world connection.
I mean, Gith and Dragonborn aren't even mammals. Gith are evil alien from outer space. Dragonborn are humanoids hatching from dragon eggs. Tiefling are the offspring of some human who made a deal with the devil. Drow are evil spider whorshippers who can live 10 times as long as humans and see exterminating entire families as an act of faith towards their goddess. Duergar are slavers who live in the underground and think that the purpose of any race apart from their own is only to work as slaves.
All of them should be met with hostility or fear when they interact with humans or other good aligned races.
I disagree, if Dragonborn aren't even mammals, why would the lore state that they're warm-blooded and nurse their young, both mammal traits, as far I see it Dragonborn and Gith are in the same boat as the Platypus, also the deal is just one of many options for tieflings, however I agree with the rest.