The most charitable interpretation of "broken culture" would be America, across all slices of society, has trended towards selfish shallow values, less intellectual interests and value on hard work, more aggression and an empathy defecit.
I think this has frayed the fabric of society by damaging the reciprocity that binds families and communities, and encourages divisive and antisocial, short-term behaviors over long-term, collective decision-making.
This varies across our rich tapestry of subcultures, but I see it everywhere. Especially among government and business leaders.