Wookiees may be considered noble savages by beings who believe the stereotype of the species. They are given a wide berth by those unfamiliar with the species, or those who have only heard about the legendary Wookiee rage. All Zabrak are deadly assassins. Again, clearly not the case, but perhaps the stereotype throughout the galaxy. Zabrak may be feared because of their odd appearance and their penchant for tattoos, even if they ve done nothing to earn that reputation.
All humans are genocidal despots.
With humans the dominant lifeform and the Empire basically controlled by humans, other species probably have well-developed stereotypes of humans. Because the Empire has anti-alien policies, some species might assume that all humans are evil and have the same views. Certainly, there might be distrust and fear when a persecuted species encounters humans. Anyway, we really hope that players want to push the boundaries of these stereotypes and try to create characters that go against the perceived norm. I never want to actually break continuity if possible, but it depends on the gameplay tradeoff and fun factor.