Ewoks, so cute in the forest with their little spears, are sacrificed by the dozen on the battlefield on Endor. Same with Ja Ja Binks' people, who speak a charming creole, have delightfully organic technology, and are nice enough to fight a decoy battle with heavy losses against impossible odds, so that the "good guys" can get on with the really important work. This is their reward for making a treaty with the Anglo Queen and agreeing to assimilate.
Then there are the Sand People on Tatooine, who are portrayed as mindless savages, so we don't really mind the first time Aniken decides to test his light saber out on an entire tribe - men, women and children. Even the stormtroopers are Maoris - cloned from Jango Fett, played by Temuera Morrison. Before Jango is decapitated, he manages to spawn thousands of clones - a vast source of Indigenous cannon fodder to be mown down in subsequent Star Wars battles.
Although, to be fair, in this case it was probably just because it's cheaper to make films in New Zealand, and hire local actors (even cheaper if the actors are Indigenous). It was the same in Lord Of The Rings - the bulk of the Orcs to be hacked up in battle sequences were played by Maori actors. (Orcs of course being dark-skinned monsters who must be annihilated before they destroy everything - the opposite of the fey, blonde, blue-eyed elves.)