Not to sound too stupid but what do people mean by "that the fabric of society is itself 'at risk' of collapse." I typically think of Mongols sacking Rome as s

Not to sound too stupid but what do people mean by "that the fabric of society is itself 'at risk' of collapse." I typically think of Mongols sacking Rome as society collapsing. All I see going on now is some people not agreeing on public policy, not Mongols on the horizon. As for why I am here, mostly to kill time waiting for meetings, drinking coffee and to see how the other half live.