What was the aim of Hitler's policy of racial purity?

The aim of Hitler's policy of racial purity was to create a homogeneous Aryan society and eliminate 'inferior' races from Germany. This policy was central to Nazi ideology, which viewed the Aryan race, characterized by specific physical traits, as the so-called "master race." According to Hitler and the Nazis, this racial purity was necessary to ensure the survival and supremacy of the Aryan people.

The regime implemented various measures to achieve this goal, including widespread propaganda, forced sterilizations, and ultimately the systematic extermination of Jews, Romani people, and other groups deemed "undesirable." This harsh and inhumane approach was grounded in a belief in racial superiority and the need to preserve the perceived purity of the German nation. Central to this was the idea that the dominance of the Aryan race was not only beneficial but essential for the flourishing of Germany.

The other choices reflect ideas that were fundamentally opposed to Nazi principles. Encouraging diversity or fostering a culture of tolerance contradicts the very basis of Nazi ideology, which sought to eliminate what were viewed as inferior races. Strengthening alliances with ethnic minorities would have run counter to their goals, as the regime aimed to suppress such groups rather than integrate or ally with them.