It's not an oppression of a religion. It's speaking the truth of a religion. In Saudi Arabia they recently crucified someone. They behead Christians. In the Muslim world they throw homoesexuals off tall buildings. It's a standard practice of Islam that they sexually mutilate young girls. If you think telling the truth is oppression then you're the one who is delusional.
Once again, someone says that Christians are hypocritical without even knowing what it means. In means to claim a moral standard but act in opposition to it. Like preaching morality but engaging in immorality. That has nothing to do with Christians wanting Christianity taught in schools. In fact, you singled out Christians for oppression. You're not saying Muslims, atheists, Sikhs, Buddhists, or Hindus have no right to have their religions taught in school. In fact, they are taught in schools. Only Christianity is singled out for oppression.
But we know why that is. It's because, as John said,
(John 3:19 NIV) This is the verdict: Light has come into the world, but men loved darkness instead of light because their deeds were evil.