What did Mit brennender Sorge say about racial theories?

The encyclical Mit brennender Sorge ("With Deep Anxiety"), issued by Pope Pius XI in 1937, served as a formal denunciation of the secularist and racist programs promoted by the Nazi regime in Germany.1

While the document is widely recognized for its opposition to the totalitarian ideologies of the time, it specifically challenged the Nazi elevation of race and the state to the status of idols, rejecting the racial theories that sought to replace Christian faith with a distorted view of national or ethnic supremacy. By condemning these policies, the papacy sought to defend the church's interests and uphold its moral teachings against the dehumanizing doctrines that were gaining influence under Adolf Hitler.1