There may be other reasons why intelligent people like liberals espouse stupid ideas.
In my previous post, I discuss Bruce G. Charlton’s notion of “clever sillies.” Charlton suggests that intelligent people have a tendency to overapply their logical and analytical abilities (afforded by their higher intelligence) inappropriately to social and interpersonal domains, where feeling, not thinking, usually leads to the correct solutions. Intelligent people lack common sense, because common sense is evolutionarily familiar, and the Hypothesis suggests that intelligent people are therefore less likely to resort to evolutionarily familiar common sense that would lead to the correct solutions to most problems in social and interpersonal domains.
Why rich smart attractive males avoid marriage? Why religions teach you to get married? Why feminazis prevent consenting females from accepting high paying jobs and escaping patriarchal oppression? Why force and deceit are often more politically correct than consent in getting a mate? What should you do to help your self?