Robert Putnam has studied this extensively but his findings weren't politically correct so he hid them for quite some time. Once he finally did release them, he

Robert Putnam has studied this extensively but his findings weren't politically correct so he hid them for quite some time. Once he finally did release them, he discovered his fears were well founded, as he was villainized for his research. So we will continue to roam around searching for the cause while ignoring what's already in front of us because we simply don't want it to be true or are too fearful of what recognizing it would mean.