Jew hatred is a lie.
Jew hatred was simply an excuse for nazis to torture and kill dissidents.
They could simply call anyone who threatened thier power or merely disagreed with them a jew and execute them, regardless of wether they were actually Jewish or not.
Have you noticed that neo-nazis do the same? They will call you Jewish if you disagree with them regardless of wether you're Jewish or not.
Nazis don't actually believe in or care about a "global jewish conspiracy" or whatever, they just want to kill you and loot your grave.