General Social Survey respondents were asked: "When you think about yourself, how important is your ethnic group membership to your sense of who you are?" The table shows the correlations between the answer to this question and the answer about the degree to which the respondents feel warmth toward a specified group. For example, the top correlation shows that the more a Jewish person feels that his ethnicity is important, the cooler he feels toward whites.
I listed the correlations in descending order. The bottom one--.06--is the only one indicating a positive association: Mexican Americans who think their ethnicity is important are slightly more likely to feel warm toward whites.
For most groups, ethnocentrism predicts (weakly) coolness toward the outgroup. This is true of all white groups. Black ethnocentrism, on the other hand, is unrelated to feelings toward whites and Mexican-Americans.
With the noted exceptions, the correlations contradict my sociology professor who claimed that, as America becomes a truly multicultural country, it will be as warm and peaceful as diverse Switzerland.
At first glance, it might seem like ethnocentricity among minorities doesn't lead to anti-outgroup feelings, and while the data indicate that might be true for blacks and Hispanics, the tendency among Jews is the strongest on the list.
"The creation myth was the essential bond that held the tribe together. It provided its believers with a unique identity, commanded their fidelity, strengthened order, vouchsafed law, encouraged valor and sacrifice, and offered meaning to the cycles of life and death. No tribe could survive long without the meaning of its existence defined by a creation story. The option was to weaken, dissolve, and die." ~ E.O. Wilson