Did you get an answer to this question yet?
For starters, some victims would be too scared to prosecute people due to threats or fear of retribution. Many people could go unpunished this way. Another big thing would be that criminals could hurt anyone who could prosecute them, so there wouldn't be a victim that could do it.
On July 10, the Monkey Trial got underway, and within a few days hordes of spectators and reporters had descended on Dayton as preachers set up revival tents along the city’s main street to keep the faithful stirred up. Inside the Rhea County Courthouse, the defense suffered early setbacks when Judge John Raulston ruled against their attempt to prove the law unconstitutional and then refused to end his practice of opening each day’s proceeding with prayer.
No, it only applies to the U.S