Which country were you living in 40 years ago?
Of course, somebody's going to say that the country being divided 50-50 between left and right with left and right moving further apart means that we are more divided than we were in the 1960s and 1970s, but most people are far from the extremes and are pretty quiet.
That doesn't mean things won't get worse, but right now a lot of the apocalyptic rhetoric is just playing into Obama's hands.