Going to sperg about Star Wars but the Empire is flat out evil. It was created through a coup, with the Supreme Chancellor engineering a galactic scale war, claiming the Jedi attacked him without reason, and then exterminating adherents of an entire religion, including children.
The Empire murdered anyone who came in contact with C-3PO and R2-D2 on Tatooine, raided a diplomatic transport, blew up an entire planet as a demonstration of a battle station, tortured Han Solo to just cause him pain (and alert Luke), occupied Cloud City after promising Lando that they wouldn’t, and built a second Death Star because they needed a planet destroying weapon to “keep the peace”. And that’s just from the movies off the top of my head.
If I go Expanded Universe, I can bring up species wide enslavement, planetary ecological destruction, High Human Culture, mass censorship, the experiments of the Maw, nationalization of industries, extensive government corruption, outlawing and persecuting religions, genocides, bio weapon experimentation, association with vast criminal networks, and so on.