Going Down?

How can God spare a nation that has wandered so far away from the moral fiber it once had? How can God ignore the continued sin that is piled up along with the constant mocking of God? How can the United States not fall under God's condemnation for the USA's continued movement away from God that has defined the USA for too many decades? How can God look aside and not notice the level of debauchery and sin that has so gripped America? What some think is God's "absence" is the same "grace" that kept God from judging Israel for so long, yet eventually, His judgment did fall.