Jews are victims to the Jewish vice of subversion nearly as much as the goyim is. Jews have a high verbal IQ (disproportionately so compared to their other IQ scores). This makes them natural quick-talkers and deceivers. Listen to the Jewish lawyers in court and realize that when they speak they say nothing. So many words, but they aren't there to communicate or convey a message, they are only there to distract, subvert, and delay. There is also the possibility that Jews have higher IQ than average than, for instance, their host society of whites (which the data is bad but it is still possible). It is my belief that whites have made such great societies, and inventions because we naturally have more statistical outliers (which doesn't necessarily translate to a higher average IQ), this higher deviation from the average also manifests itself visually in whites (the huge variation in body types, hair/eye colors, ways of thinking, etc.). We have evolved as an individualistic people and this has manifested itself outward and inward, conversely the Jews have evolved as a collective people (slowly sapping some of our DNA in order to infiltrate our culture throughout the years).
To get back on point, because whites have a lower average intelligence, and Jews are natural quick talkers, Jews are able to outwit the average white. This coincides with my personal anecdotes, but perhaps not yours, it is a working hypothesis. Like I said previously, Jews have a disproportionately high verbal IQ compared to their other scores. What this means is - they aren't as smart as people think they are, and they especially aren't as smart as they think they are. All their "genius" stems from out-talking people (but saying nothing). Look into pilpul if you want to see more. They probably developed this because of the Talmud and its huge emphasis on talking/writing/arguing. If you don't know anything about it other than it says mean things about goys, it is an inane argument through the ages where Rabbis try to dictate every facet of life, and then other Rabbis try to find loopholes in what the other Rabbis said (and now you realize how Jewish our modern law is). Interesting to note as well is that they believe the name YHVH is how the universe was created. Each letter in the name YHVH corresponds to a state of creation.
The Jewish character leads them to ruin. Yes, we have been "ruled" by idiots. They are subverters and like a beast only follow their natural instincts and that is promote what is good for them, and demote what is bad for them. The essence of Jewish hostility is if you aren't with them, you are against them, or at least that is how they perceive it. The other major natural ruler of their instincts is destruction. They seek to destroy and undermine. People have different opinions on why. Bobby Fischer, the half-jew, for instance thought that they sought to destroy all that is beautiful, because they themselves are ugly and envious. Some think that they have evolved from their time in exile to being too dependent on city life, and thus divorced and hateful of natural. I think The Believer sums it up fairly nicely (just youtube it, webm has already been posted, and embed won't let me post), but ignore the part about Israeli Jews not being Jews. Jewish character is as much racial as it is religious.
That being said, that is why the usual or average Jew behaves the way he does. I am certain there are Jews who are aware of the direction of their people as a whole, especially the elites, but the average Jew is just following his natural character, and thus should be the vessel of pity, as much as he is a vessel of hate.