“The 1994 book by political scientist Charles Murray brought the idea into the national consciousness, though it has been widely criticized by mainstream scientists.”
Criticized because they can show Dr. Murray was wrong...or criticized because no one is allowed to present that data?
Reminds me of studies on gays...they don’t come out very good (relating to violence, health issues, etc.) - so the solution is to PROHIBIT those studies. There are still ones from the 1970s and earlier, and that’s all we have.
“...widely criticized by mainstream scientists.”
But never REFUTED.