The boisterous clan featured in the new documentary “Our American Family” is a true reflection of Our Complicated Country in all its ragged glory. The Geraghty-Caltabiano family — mother Linda Geraghty; her second husband, Ryan Geraghty; and Nicole Caltabiano, Stephen Caltabiano and Chris Caltabiano Jr., Linda’s adult children from her first marriage — live just outside of Philadelphia, the birthplace of the United States. They talk sports at the dinner table, use Google to prove their points during arguments and eat a lot of takeout. And like millions of their fellow Americans, they are deali…