Sometimes people do say the world be a better place without religion. Because how people take religion too serious , so if you are not of the same religion which they belong they have nothing to do you. Would the world be a better place without religion? Has region not play any role in our society.
I'm against religions and also an Atheist myself. They were formed in order to explain basic common knowledge, which could be proved using science. Stephen Hawking had said, that there's no way to prove that God doesn't exist, however, science makes believing in God pointless.
In my opinion, religions sparked a lot of hatred between nations (Or other religions) and were the main cause of war. (See Jihad, as a modern example, or Crusades)