Why are personal freedoms limited in a totalitarian state?

A totalitarian state defines a mode of government, which prohibits opposition parties, restricts individual opposition to the state, and exercises an extremely high degree of control over public and private life.The government of Nazi Germany was a totalitarian state.

The personal freedoms limited in a totalitarian state is to discourage the opposition.

they were treated very badly. they were targeted by white supremacists and other groups, like the klu klux klan, even after coming back to the country as veterans. they were seen as inferior and gave the african americans new found motivation to fight against this racial injustice. 

your answer is

to dominate europe

and i know for a fact it can't be the others