<p>To give a serious answer, you have to begin with the New Testament and then what happened in the early centuries of Christianity. Much of the vituperative hate seems to have grown out of a couple of threads within Christianity. One was purification, meaning the distancing from Jewish practice and beliefs, and an excellent example is John Chrysostum, who preached the destruction of Jewish books of learning, etc. (I find it somewhat amazing that a man who preached abject hatred is still revered - and there’s a church to his name near me.) </p>
<p>Another thread in Christianity is that as the Church intertwined with the Imperial state - and the imagery became Imperial - the force of doctrine became imbued with the same ruthless power that had formerly been used against Christians by Rome. An empire doesn’t tolerate dissent well and the Empire became dramatically Christian and switched from persecuted to persecutor. Think of the context; it’s estimated that over 10% of the ancient Empire was Jewish, with almost all of those people concentrated in the cities of the East (and in Rome itself). There was an Imperial need to encourage conversion and to persecute the Jews and this was made manifest to Imperial authorities by the Jews refusal to surrender completely to their power in the ancient land of Israel. </p>
<p>To skip ahead, Christians prohibited lending at interest but allowed Jews to lend at interest so Jews became moneylenders. No one likes bankers much. Note that even in The Merchant of Venice, Antonio borrows from Shylock only because the Christian lenders refuse him. The concept of a “pound of flesh” is a version of the so-called “blood libel,” which is a weird distortion of Christian belief about the transformation of wine into Christ’s blood into a completely made up idea that Jews need Christian blood to make matzah for Passover. The idea conflates the 10th plague of the Passover with Christian communion to make something no Jew has ever recognized. (Matza, btw, is explicitly required to be only water and flour.) </p>
<p>Christians placed themselves under a number of what now seem silly restrictions. You can read all sorts of laws that prevented Christians from using numbers in transactions, meaning they had to do bookkeeping in longhand, writing out the numbers. Christians lost the accounting knowledge developed in Rome, but Jews kept it and so they were accused of having secret knowledge and of manipulating figures.</p>
<p>In modern times, a major issue has been what’s commonly called assimilation. Until Napoleon, Jews were mostly locked in streets at night - in German, the ghetto - and it wasn’t until Napoleon that they were allowed to be citizens anywhere. Over time, Jews became Germans, Danes, French - not Poles, btw, never Poles and never Russians. One need only read Wagner’s incoherent ravings to understand the problem of people worried about ethnic purity. Wagner merely took it to a mythic level, one that the Nazi’s then used; in his imagining, Jesus did not need to appear to the pure Aryan race because they were pure but then were polluted … and guess what is a symptom of pollution? It’s always been a rather strange thing that defensiveness over not receiving the original message of The Christ must be transformed into a story that not only explains why but then blames The Christ’s own people.</p>
<p>Finally, I’m going to address a bit that’s more controversial. The “problem” is that Jews are extremely successful beyond their numbers. About 20% of all Nobels have been won by Jews - and in some fields like Chemistry, it’s a third. The same is true of most prizes and Jews are again highly successful beyond their numbers in a wide variety of creative fields - as well as in finance. What are the possible explanations? The sick and deluded take the insane view and go with an international Jewish conspiracy. Besides being stupid, imagining a conspiracy doesn’t explain why Jews are so creative. A conspiracy doesn’t explain the many Jewish physicists like Oppenheimer or Teller because a conspiracy can’t come up with new science. </p>
<p>A second group takes the nearly as illogical position that heredity is the difference. There has been a small bit of research that traces mitochondrial DNA in male Jews and which thus purports to show some form of continuity. How that translates into intelligence is a huge leap wholly unjustified by anything. I don’t really need to talk about this idea because it’s not a favorite of Jew haters.</p>