Exactly, Facebook and a few others got in trouble because advertisers could set geographic criteria which translated quite neatly to race demographics.

The fact is that different ethnic groups don't seem to mix organically unless they are all quite wealthy, at which point they have more in common with their socioeconomic class than with their ethnicity.

>The fact is that different ethnic groups don't seem to mix organically unless they are all quite wealthy, at which point they have more in common with their socioeconomic class than with their ethnicity.

That goes both ways. If you've got a group of mostly upper middle class whites, Asians and Indians (i.e. your average tech company) the poor whites are going to hand out with the blacks, Mexicans and eastern Europeans. Not having much in common with the majority group is the trait that ties the minority group together.

That’s an impressive claim. Source? I can think of a half dozen things that probably correlate as strongly with race. For example, what you ate for breakfast this morning.