So why haven't any of the other groups with the same tendencies received the level of hatred leveled against Israel and the Jews? The fact is, per capita, Jews have made by far the greatest contributions to humanity (my opinion).The love of money, grumpy behaviour and general bloody-mindedness are traits that tend not to lead to popularity....
I've known and been around American Jews all my life - worked with them, befriended them, played poker with them (dangerous), and I value my Jewish friends and the general Jewish culture. They tend to raise smart kids, run good families, and benefit their larger communities.
I've ached over the Holocaust and the cruelty done to Jews, particularly by Christians who should have known better. And it's been going on for countless centuries. Jews, being locked out of trades, crafts and some professions had to band together and support each other which may have contributed to the clannishness we perceive. They had to become bankers, jewelers, physicians and scientists.
One more anecdote:
My Jewish neighbor my age in high school and i became friends when I first moved into the neighborhood. We both loved the math and odds/probability of poker and played hours of two person cards. He introduced me to his Jewish poker partners from the local synagogue and invited me to play with them. I was the only Goyim at the table, usually six or seven guys.
For a while I'd play at one of their houses almost every Sunday afternoon. During that time the Six Day War erupted and I got to listen to their take on it. In 1967 their families all had ties to the Holocaust and my friends were the children and relatives of those who suffered. A few had no grandparents because they were lost to the Nazis. That's probably when I took on a pro-Israeli and pro-Jewish point of view. Those guys were great friends and unique and interesting people. They had the best jokes and it dawned on me later that so many of the best comedians in the post-WWII era were Jewish. That was another profession open to them.