Tbh I find his racism beign in line with his pedigree, while his father is a moderate and so are some members of the troupe, he's still a garlean and they do have a superiority complex over the other races.
The company Thespian, while not beign straigthforward racist he's still approves the garlemand espantionist ideas of "saving" the other races and when the big revelation about Goug comes
he starts scoffing the conquest of Dalmasca as a return to home
It is of my opinion that most of the empire citizens are beign written as having some sort of savior complex and make no mistakes, the populares might not be for war but as far as we know they are simply using politics instead of warmachines to conquer the lands.