For their own massacring the Jews in the Rhineland during the Middle Ages? For the blood libels, pogroms, expulsions, in every century, perpetrated by Germans against Jews? The Germans shed Jewish blood non-stop from 1100 to 1945. Htiler did not invent anything new. He merely practiced what the German "theologian" Martin Luther preached. Where are you from, by the way? Your name looks like it's ultimately of North African Arab origin, only thinly Italicized. You're definitely not an Italian.

"At the time almost half of all German private banks were Jewish owned, the stock exchange dominated by Jewish stockbrokers, almost half of the nation’s newspapers were Jewish run as were 80 per cent of chain stores. It became fashionable to decry the loss of the war on Jewish financiers. But Hitler, according to Reuth, also blamed Jews for the Russian revolution, citing Leon Trotsky’s faith, as well as that of Marx whose theories he followed and even Lenin, who was one-quarter Jewish. When a Soviet republic was declared briefly in Munich that year, argues Reuth, the die was cast for Hitler to demonise the Jews as bearing responsibility for the world’s ills. 'With World War One lost and Germany in financial ruin, with revolution threatening, he came to see the Jews as solely responsible for stock-exchange capitalism, which caused acute poverty and suffering when it faltered, and Bolshevism,' said Reuth. 'These two events were pivotal in shaping his views of Jews and his subsequent plan to murder them all. 'He bought into the rumours and the whispers that blamed Jewish capitalists for stabbing Germany in the back." -DailyMail