Ethnic loyality among Jews: A theme I often run across on the blogosphere is the extent to which Jews think about collective Jewish interests when forming political views. People often confuse four different entities: 1) a relatively small number of famous elites; 2) Jewish elites in general; 3) major Jewish organizations; and 4) Jews as a group. This website is devoted to data, especially survey data, and such an approach lends itself to assessing question #4. In past posts, data have indicated that only a minority of American Jews are what could be termed ethnocentric. The only measures I have seen which demonstrate consensus or something approaching consensus have been Jews' belief in immigration and preference for Democratic political candidates.
One measure of ethnic loyalty available from the General Social Survey is whether or not you think of yourself as mainly an American when considering social and political issues, or as a member of an ethnic group. Almost 1,200 people were asked this. Here are the percentages who answered "mainly just as an American":
Percent who think of themselves as just an American
Protestant Irish 97.1
Catholic Irish 94.7
Mexicans (born in U.S) 83.3
A commentor at Sailer's blog claimed that American Jews are like Irish Americans, but the data tell us that they are more like Mexicans: most don't form opinions qua minorities, but some do.