When the terrorists took down the Twin Towers, they thought it would paralyze the US. It didn't. Life went on because all the important decisions and actions don't occur in New York or Washington, DC. The important things occur in our communities, our businesses, and our individual lives.
When Richard Nixon was impeached and driven from office, the US went on.
After Vietnam and the civil rights riots, the US went on.
When JFK was assassinated, followed not too long thereafter by Martin Luther King Jr. and Bobby Kennedy, the US went on.