A large group lined the sidewalk near Katella Avenue, holding signs describing Trump as a Nazi, with the candidate's face painted like a clown or the Joker.
Tlacaelel Quetzalcoatl, 52, director of Mexica Movement, an education organization for indigenous people in Southern California, held one of the signs.
"Trump is a white supremacist. How dare he say that we should leave the U.S.; he's the one that needs to leave," Quetzalcoatl said. "This is our country."