fact: WW1 many Jews thought of the germans as their liberators from the evil(ish) Russians.
Other Fact: The only real reason WWII germans hated jews is because of the politicians using them as a scapegoat. Thus only the exceedingly idiotic ones hated jews.
Point: Nazi-ism is not equal to anti-semitism, and contrary to what you may have been lead to believe, the nazis did things other than just the holocaust, and even within the holocaust, they killed other people besides the jews, and even further than that, they were not the only nation to ever take genocide out on a date.
Other fact: the Allies used propaganda too. Don't forget it.