Question

how was racial state established by Hitler in Germany

Answer 1

Nazis quickly began implement their dream of racial community of pure germans by physical eliminating all those who were seen as undesirable in the extended empire. Nazis wanted only a society of pure and healthy Nordic Aryans. They alone considered desirables. Those who were impure had no right to exists.
Jews ,many Gypsies and blacks were undesirable and considered as racial inferior who threatened the biological purity of the superior race of Aryans. They were widely presecuted. Jews were steriotyped.