The anti-theist case has been made in many ways. Ayn Rand's
Atlas Shrugged attacks the "mystics of spirit" and Christopher Hitchens'
God Is Not Great discusses almost every individual version of religion invented by humans.
But the most basic principle, in my opinion, is that good people will do good things and evil people do evil things, but in order to persuade good people to do evil things faith is needed to drive them.