Zionism is not Judaism, just as much as Extremism has absolutely nothing to do with Christianity or Islam. Hitler was killing the REAL Jews... he wasn't going after Zionists. And yes, there is a clear distinction between the two, being one doesn't automatically make you part of the other, and vice-versa. For more info about the difference between Judaism & Zionism, CLICK HERE.
REALITY is what it is, denying it won't make it go away, Historical facts speak for themselves.