You can see the bigotry in considering an entire minority to be a “character”, right? This would be like considering “Black” or “woman” to be a character trait (which Hollywood does somewhat do, actually) - I mean, you do get ugly little people. You get obese ones, redneck ones, gangster-looking ones - also lesbian ones (hell, Oscar-winning lesbian ones), Black ones, funny ones - even good-looking leading man/woman types (like Dinklage or Meredith Eaton(rowr)). To reduce all of that to “dwarf” as a character trait is bigotry, IMO.