Is it correct to say that one culture is superior / inferior to another?
If a culture violates the basic liberties given to all by God, then yes. You could say they were inferior.
I think it can be if one is oppressive/cruel/exploitative of its citizens, and another is not. It seems inconsistent to hold certain values to be of universal importance, but be afraid to criticize cultures that violate those values.
It sound vey Hitlerly
Superior in quality of life? Yes it's correct to say that. An Americans life is far superior to a Kenyans life, if you look at quality of life.
I'm talking culture, a people's way of life, the goldfish's water. Would you say that the lower standard of living in Kenya is a result of their culture, or of other factors beyond their control?