"...greater economic freedom and greater wealth do indeed exhibit greater tolerance toward gay people, a tendency suggesting that gay rights, including gay marriage, will spread globally as national economies liberalize and develop. In other words, if a society allows individuals to engage in consenting capitalist activities with a minimum of legal regulation, we might also expect tolerance of a variety of other choices, including those regarding sexual behavior. Identifying cause and effect can be difficult in such studies, but increases in economic freedom have been associated with increases in this kind of tolerance."
As Tyler concluded, score one for the Enlightenment. One glaring problem with repressive societies around the world is that they are stuck in an anti-Enlightenment trap that the civilized world escaped (slowly, to be sure) two centuries ago.