They have been telling it for more the 60 years and nothing happened.....
On the contrary, in the ex-communist countries that they banned religion, after the falling of communism we have see that people turned to their religion routs. In Russia for instance Orthodox Church gained lot of believers, got back the Churches after of many years of persecution by the communists and showed that people didn't lost their faith in God, and basically people show that they need to have faith in to a "Superior Power".
It is only a rumor in order to keep the followers under their bonds, and keep them under the status of fear!!!
UN CANNOT bann religion, because we have many countries that they have strong religious bonds:
Can they ban Orthodox Christianity from: Greece, Russia, Ucraine, Roumania, Serbia, Georgia, Bulgaria, just to mention few?
Can they ban Catholic Christians from: Italy, Spain, France, the entire Latin America that they are Catholics?
Can they Ban Muslims from: Saudia Arabia, Pakistan, Turkey, Iran, Iraq, Allgeria, Egypt, Syria, just to mention few of the countries?
Can they Ban Hinduism and Budhism in India and China, that they are the 2/3 of the earths Population?
THE ANSWER IS A BIG NOOOO....
U.N CANNOT DO THAT, AND EVEN THEY DON'T HAVE THE POWER TO DO IT...BECAUSE U.N. FOR MORE THAN 60 YEARS IS A POWERLESS ORGANIZATION....
END OF STORY