Excerpting TWCS, Heartiste talks about quantifying the costs of Diversity!, the structure of which is characterized by an iceberg effect with the most conspicuous costs representing a small fraction of the total while the most go unnoticed by all but the few who deliberately look for them.
While TWCS defeated the kraken, I'll throw my slippers at the beast's carcass. In the nineties the GSS asked respondents how they felt about cheating on income taxes. The following table shows the percentages who answered either it wasn't wrong or it was only "a bit" wrong among whites (n = 1,534), blacks (n = 304), and Hispanics (n = 123) (the question was only asked twice and consequently sample sizes were too small for Asians):
The ethnic group most morally repulsed by tax cheating*? Surprise, surprise, it's those of English or Welsh ancestry (n = 298), with just 9.9% judging it to be either not wrong or a bit wrong.
* Among groups with at least 35 responses
GSS variables used: RACE(1,2), ETHNIC(1-16,18-29,31-97)(17,22,38), TAXCHEAT(1-2,3-4)