Down with sexism! 打倒性别歧视!
He's a gay-basher. 他是大肆攻击同性恋的人. He's a white supremacist. 他是白人至上主义者.
He's a bigot. 他是老顽固. 他歧视有色人种. Ageism is a form of discrimination. 鄙视老人是一种歧视.
That's a sweeping statement. 那是不分青红皂白的声明. You're being stereotypical. 你这样说, 未免有失偏颇. One rotten apple doesn't spoil the whole bunch. 一根竹竿打翻一船人.