While significant strides have been made in the pursuit of life expectancy, healthcare, educational opportunities, and constitutional protections for women, the Supreme Court, in particular, still wrestles with their status, as evidenced by their problems in pursuing equal opportunity in education and employment, reproductive freedom, the military, and violence against women.
Identifying the flaw in the US philosophical roots requires that we move beyond the intellectual and emotional climate in which the Constitution was conceived and adopted. The meanings of concepts and words change with use, and even the Supreme Court has admitted that the original perspective of the American social contract has been altered by the passage of time.
Today, no less than five Supreme Court justices are on record, either through their opinions or speeches (or both), that they will consult foreign law and foreign-court rulings for guidance in certain circumstances. Of course, policymakers are free to consult whatever they want, but not justices. They're limited to the Constitution and the law.