I have a proposed explanation for “backlash”: personal investment.
Some of us may have done well in IQ tests, and focused on intelligence (and the associated notion of rationality) as personal strengths. Accepting the notion that IQ tests don’t measure anything “real” (except in the sense that they measure “the real ability to perform well on IQ tests”), would also mean downgrading estimation of one’s personal worth.
Explaining away evidence against IQ tests as “merely politically correct anti-racism” allows retaining that sense of worth.
I have a proposed explanation for “backlash”: personal investment.
Some of us may have done well in IQ tests, and focused on intelligence (and the associated notion of rationality) as personal strengths. Accepting the notion that IQ tests don’t measure anything “real” (except in the sense that they measure “the real ability to perform well on IQ tests”), would also mean downgrading estimation of one’s personal worth.
Explaining away evidence against IQ tests as “merely politically correct anti-racism” allows retaining that sense of worth.