One is left only to imagine the nightmarish goings-on in the large cities like Detroit, Chicago, LA, and others in the aftermath that will follow the Rapture.
The Holy Spirit (the Restrainer) will withdraw from His office as governor on the consciences of mankind, we are told in 2 Thessalonians 2: 6-8. Then evil will be unleashed to make life hell on earth for all of those left behind to face God’s wrath and judgment.
Jesus foretold that as part of the end-of-the-age signs, nation will rise against nation (Luke 21: 10a). The word "nation" in Greek translates to ethnos or ethnic in English. Jesus was saying that racial strife–as well as economic, unsolvable turmoil--will be at the center of the nations in distress with perplexity (Luke 21: 25b).
Based upon things going on in the Middle East, Europe, and now the U.S., with mobs beginning to do what is right in their own eyes, it seems to me that post-Rapture rumblings can be heard on the prophetic horizon