Have a look at the related question.
that jews were inferior to aryans
Hitlers idea of the Final Solution
He blamed the lose in WWI on the Jews, and blamed them for the economic depression in the 1930's. (He said the Jews had taken all the good jobs in German.)
Hitler was obsessed with creating a "pure" Aryan state. He thought this could be accomplished best by expelling "non-pure" races, such as Jews, from Germany. He later decided that to do it right, he needed to totally exterminate them.
They where persecution by Hitlers solders
Blacks & Jews.
It was all three. Hitler choked the jews in gas chambers, tortured them to death, made them work brutally till they died, etc.
The Nazis and Hitler committed genocide on the European Jews.
He wanted to exterminate the Jews.
No. A minority survived.
he was very racist to the Jews
It was an evil idea. The Final Solution refers to 'The final solution to the Jewish question', ie. what to do with the Jews under German control. This invariably meant mass murder or genocide.