This diversity stuff comes from the very top, when I was doing my PhD the three most productive (and published) grad students and post docs were a few white and

This diversity stuff comes from the very top, when I was doing my PhD the three most productive (and published) grad students and post docs were a few white and chinese guys. But every grant I proofread from my advisor extolled the "diverse" make up of the lab and the contributions from underrepresented minorities therein (women of various backgrounds) who largely did not contribute to any of the prior work on which the grant was premised. This is universities taking their cues from their funding agencies, the government, and expounding on them.