> "Wow just wow what a 'racist campaign for the return of segregation'"
I wonder why it is so difficult to do or publish research in this area?
in any case, it's not ethnic diversity that impacts social trust but (sub-)cultural friction, which can happen between subsets ('tribes") of the same ethnicity (which is mostly a superfluous distinction anyway). tabs vs spaces, for instance.
we like to imagine mountains out of molehills and then point to our mounded constructions to prove how we're so irreconcileably different, but it's often a thin veil over an insecure assertion of authority and superiority.
An echo chamber is trusting yourself and the other members - even when that trust is misplaced.
[ETA: does someone think I'm implying that's a good thing? It's not. It's bad for everyone, even the perpetrators.]
Research seems to show social cost to cultural diversity. Research not published for fear of appearing to oppose diversity.
And you go ahead and do precisely what he was afraid of...
Social research isn't published precisely for this reason...
Those consequences can be reduced; the question is, can they be reduced faster than forcing a new generation grow up under the diversity?