As if growing up with parents that fight and scream at each other is "healthy"?
Just because divorce didnt really exist before 1960, doesn't mean marriage was peachy. There are plenty of our parents that are just as fucked up in the head as us, and may be one of the underlying reasons WHY were are fucked up as a generation. Marriages fail becuase it is unnatural for humans, especially men, to be monogamous.