America’s demographic cake is baked

Anti-immigrant pseudoscience will fail again, says Ray Suarez.

The second half of the 19th century left a lot of junk in America’s mental attic: that place we let old notions, impressions and delusions pile up rather than taking them to slumber in a faraway landfill. Our dead and outmoded ideas have gathered dust, out of sight and out of mind. Lately, however, shifting demographic realities, rising ethnic anxiety a…