I don&#x27;t disagree with your analysis of the studies, but the fact that a difference remains after accounting for known socioeconomic factors does not indicate that other factors do not exist.<p>Personally, I wouldn&#x27;t call this[1] a productive thought, rather a fatalistic one.<p>[1] &quot;since this problem is intractable with current levels of biotechnology&#x2F;social engineering&#x2F;etc, we should stop wasting resources trying to solve it and focus on other things&quot;