Tarantino has never been someone that valued aesthetics.
Despite what Hollywood tells the world, “Aryans” were the ones that won World War II for the United States. German-Americans made up the largest ethnic group to fight for the United States in the war and the majority of the rest of soldiers were of Nordic descent. Inglourious Basterds is just an attempt by Tarantino to kiss the horrendous asses of his Hollywood masters due to his declining popularity. Instead of the passive-Jew-gets-shoved-into-the-gas-chamber angle Steven Spielberg practically invented, Tarantino wants to make up a myth that Jews collectively fought the Germans man-to-man in the second World War.
To be fair, Jews did take their revenge against the Germans after World War II. For example, Jewish Zgoda death camp commander Salomon Morel killed about 1,695 Germans (and a handful of Poles) for mere pleasure. He killed the German refugees by ill treatment, torture, and outright murder. One of his favorite ways of killing Germans was bashing their brains out with the end of a chair leg. Poland attempted to have Morel extradited from Israel for “crimes against humanity” but of course Israel declined. Naturally, Morel felt that he was a victim of an “anti-Semitic” plot.