Where did you read this "claim"?

I compel you to keep being curious about any narratives that deal with the accusations or demonization of any group or individual. I had a history teacher in the 80's that usually prefaced any teachings with "We are told that …", "Historians say…", "Official sources state…" etc. It is my belief that he had to teach the curriculum AND he had the intent to help us question it all. He, in his wisdom, was probably more aware of the realities behind the propaganda and purposes of war and it's puppet masters. I could be wrong.

If you research Germany from 1918-1939 you may find that what they were up against and what they fought against could be quite different than advertised. After WW1 they were stripped of much of their self control over industry, banking/finance, media, governance, etc. The next years were plagued with strife, hunger, instability and outside control. Appropriate or not the results were, seemingly, hardly focused on shared well being. In this time their economy and industry were sanctioned, black balled, isolated and failing. The rise of the alternative to this was a natural progression and those who were in benefit at the loss of Germans seemed bent on resisting change.

The narrative of this nation at the time was of an initiative focused on the persecution of certain groups where it MAY have been based more in the prosperity of their collective. I by no means deny or diminish the experiences of others or support any atrocities.

What is your source on this?

Hitler didn't want to exterminate anybody. Hitler wanted Germans -- white Christian Germans -- to be able to live and work and thrive on German soil, without being exploited by the Jews or anyone else. Hitler wanted to free Germans from the yoke placed around their necks after the end of WW1. He failed, which is tragic, but he made a noble and courageous attempt that would have succeeded had Britain, America and Russia not conspired against him.

considered Slavs inferior and wanted to exterminate them

Jews did that. It’s always jews.

“The Austrian Germans and Magyars will be set free and wreak a bloody revenge on the Slav barbarians. The general war which will then break out will smash this Slav Sonderbund and wipe out all these petty hidebound nations, down to their very names.” ~ Friedrich Engels ; The Magyar Struggle ; Neue Rheinische Zeitung; January 1849

The jew cries out in pain as he strikes you.

official documents

Germans not only didn’t want to kill Slavs, they considered them Aryan and gave them citizenship.

“Albert Gorter, a prominent minister official, gave the definition of Aryan as: The Aryans are one of the three branches of the Caucasian; they are divided into the western (European), that is the German, Roman, Greek, Slav , Lett, Celt [and] Albanesen, and the eastern (Asiatic) Aryans, that is the Indian (Hindu) and Iranian (Persian, Afghan, Armenian, Georgian, Kurd)… Thus, the non-Jewish members of the European Volk are Aryans.” ~ Dr. Eric Ehrenreich , historian & jewish museum fellow; The Nazi Ancestral Proof , pp. 9-10; 2007

“These six races [Nordic, Falish, Western, East-Baltic , Eastern, Dinaric] are called Aryan according to our legislation. Therefore, those people who belong to one of the six races or carry the properties of these races in a mixed form are considered Aryan in Germany. (Non-Aryans, on the other hand, are the Orientals and Near Easterners, or crosses of these two with other races, as represented by the Jewish people.” ~ Richard Rein ; Race & Culture of Our Ancestors , p. 18; 1936

Give me a minute and I’ll post some images of some original documents.