The best way to combat contemporary anti-Semitism isn't to rely on the cobwebs of the past. Rather, we need to dedicate our resolve into focusing on the present and targeting its contemporary manifestations head-on.
If someone actually is inciting violence or hatred or seeking to remove the rights of other people, then we can stand up against them together. But let's start by acknowledging that, right now, too many people dismiss the opinions of others out of hand far too easily.
It still bothers me, as it would any emotionally healthy person, how do I reconcile my love for the scientific achievements of a man whose work killed so many. The answer, I assume, lie in the methods and scientific validity of his work.