Does Secularism Lead To Racism? Discussion of two contradictory theses about religion and racism. The first argues that secularisation led to the decline of Christian universalism and thereby paved the way for “scientific” racism. The second argues that Christianity was the foundation on which racism and slavery rested, and that it was only with the decline of faith and the revelations of scientific progress that bigotry could be overcome. Conclusion: “Freethinkers have a fairly decent record on race, and religion a patchier one. Further information.