Indeed, travel does broaden. We become more mindful. We notice that there are no full box cars loaded with Americans trying desperately to smuggle into another country. Of course not. Of course they are.
All cultures are fearful of something.
Americans have large, esoteric fears about the water we drink, the air we breathe, the food we eat, the land we live on, and the energy we use. However, those big concerns carry little actual risk. Most Americans live longer, more healthy lives. Most Russians do not. Most Rwandans do not.