"Zionist Extremism as Product of the Internal Dynamics of Judaism" by Kevin MacDonald:
"An important mechanism underlying all this is that of rallying around the flag during times of crisis, a phenomenon that is well understood by social psychologists. Group identification processes are exaggerated in times of resource competition or other perceived sources of threat,131 a finding that is highly compatible with an evolutionary perspective.132 External threat tends to reduce internal divisions and maximize perceptions of common interest among ingroup members, as we have seen among American Jews in response to perceived crises in Israel, ranging from the Six-Day War of 1967 to the unending crises of the 1990s and into the new millennium.133 Jewish populations also respond to threat by developing messianic ideologies, rallying around charismatic leaders, and expelling dissenters from the community. Traditionally this has taken the form of religious fundamentalism, as among the Hasidim, but in the modern world these tendencies have been manifested in various forms of leftist radicalism, Zionism, and other Jewish intellectual and political movements.134 Throughout Jewish history, this siege mentality has tended to increase conflict between Jews and non-Jews which then has a feed-forward effect of increasing the perception of threat among Jews. In the context of the intense ethnic conflict of nineteenth-century Eastern Europe, the conflict was exacerbated by an enormous increase in the Jewish population and the resulting poverty.
And in all cases, the leaders of this process are the more ethnocentric, committed Jews. They are the ones who donate to Jewish causes, attend rallies, write letters, join and support activist organizations. As J. J. Goldberg, the editor of the Forward, notes, Jews who identify themselves as doves feel much less strongly about Israel than those who identify themselves as hawks. “Jewish liberals give to the Sierra Fund. Jewish conservatives are Jewish all the time. That’s the whole ball game. It’s not what six million American Jews feel is best — it’s what 50 Jewish organizations feel is best.”135 In other words, it’s the most radical, committed elements of the Jewish community that determine the direction of the entire community.""JDL Canada is ‘More Than Willing’ to Help Defend Montana Jews from Neo-Nazis".
"Exodus Redux: Jewish Identity and the Shaping of History".