why were they killing innocent people for money and technology?
Because of cac exploitation by FRIEZA the white supremacist.
Black people are employed in the United States government doing the exact same things in other countries that the Saiyans were doing while employed by Frieza's Planet Trade Organization.
those two paragraphs alone is the exact scenario that white people have feared since taking Black people from Africa. They harbor a secret fear of a "Super Saiyan"(Messiah figure) arising.
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the proof is the COINTELPRO program started by the United States governement.
