Wow. Just wow.
Let's look at the descriptions of draconians in
MC4 Monstrous Compendium Dragonlance Appendix (affiliate link), published in 1990, and compare them to language describing real-world minorities.
"Acts of racial violence were justified and encouraged through the emphasis on this stereotype of the Savage." -Laura Green,
Negative Racial Stereotypes and Their Effect on Attitudes Toward African-Americans.
"The driving concept in the book is that African American men are depicted as 'Black demons' by U.S. media. As 'Black demons,' African American men are stereotyped as prone to criminality and violence and unable to fit into society." -Book review,
Black demons: The media’s depiction of the African American male criminal stereotype.
"White Americans value self-reliance and object that blacks fail to demonstrate self-discipline." -Michèle Lamont,
Who counts as “them?”: racism and virtue in the United States and France.
That's just the tip of the iceberg. To say that there's no coded language in classic depictions of draconians - to say nothing of
objecting to more recent depictions of them as individuals rather than being racially evil - is problematic in the extreme.