Self-identified tolerant people exhibited discrimination, prejudice and political intolerance against those with whom they disagree.

From Are the ethnically tolerant free of discrimination, prejudice and political intolerance? by Boris Bizumic, et al. Abstract.

We hypothesized that the ethnically tolerant (i.e., people who are anti-ethnocentric and score very low on a measure of ethnocentrism) would perceive people with extremely incompatible values and beliefs as out-groups and would engage in discrimination, prejudice and political intolerance against them. Experiments among Australian citizens in Studies 1 (N = 224) and 2 (N = 283) showed that the ethnically tolerant perceived supporters of a message in favour of mandatory detention of asylum seekers as out-groups and consequently exhibited discrimination, prejudice and political intolerance against them. Study 3 with 265 U.S. citizens showed that, controlling for liberalism, ethnic tolerance led to prejudice against out-groups. This was replicated with 522 UK citizens in Study 4, which also showed that social identity, and not moral conviction, mediated the link between ethnic tolerance and prejudice. The findings suggest that the ethnically tolerant can be discriminatory, prejudiced and politically intolerant against fellow humans.

While the population samples are much larger than most these studies, they ought to be larger still before placing great reliance on the findings. However, the findings are consistent with the results from other, similar research.

The inclination towards prejudicial or discriminatory behavior and intolerance of others is common across all human groups regardless of self-identified virtue.

Our common humanity depends on finding points of commonality with those with whom we disagree. There is an infinity of ways to divide ourselves up based on singular identity; we have to instead work at building commonality. It is surprisingly easier than one might think, but one has to be disposed to do so.