Part of it is that the bulk of Americans don't travel outside the country. Many don't travel outside their own state. Americans tend to live near other like-mi

Part of it is that the bulk of Americans don't travel outside the country. Many don't travel outside their own state. Americans tend to live near other like-minded people and are afraid of those with other views - both in our own country and outside. Facebook pushes this filter bubble which we gobble up. It's not an accident, and it has a scientific basis. It's also better for advertisers. Regarding sex and violence and censorship - I agree it's a little odd. The only thing I can think of is that there are more laws and regulations regarding sexual photos than violent photos. Also, our media also has a history of pushing violent stories. If it bleeds it leads.