This can be really insulting, ascribing negative stereotypes to people and associating them with fictional characters.

Like when people went after J.K. Rowling for her "anti semitic depictions of jews". When she just made some greedy goblin characters and other people created the connection in their own minds.

"Elminster was denied a seat at the arcane university because the university required 45% of new students to be orcs, goblins, and dwarves. He attempted to start his own Elminster university but was denied a charter because he wasn't a female, after a few potions later Elminster identified differently and was able to start a school with a healthy donation of tax payer funding. The Hobbits are upset about the drink portions and identify as cave trolls to get Large sized mugs of ale."

Must it?

Edit: “I would like them to say something like, ‘Any sentient creature from the material plane is like a human, in that they can be anything they want to be—good, bad, smart, or not so smart.’ And so races might dictate certain things like whether you have dark vision or a breath weapon, but they just don’t dictate your behavior.”

As in real life, so too it must be in fantasy, that the brain is the sole organ immune to genetics.