Some believe in other gods, such as the Hindu pantheon. Jews believe in the same God as do Christians but believe that Jesus was, at most, only a wandering preacher. Muslims revere Jesus, but only as...
Short answer, yes. For more in-depth info, check Wikipedia, watch a documentary, or find someone of the Amish denomination (this last one may be difficult as they tend to live, more or less, detached...
Jesus said that his second coming would occur within many of his followers' lifetimes. Justice would be established. This did not happen within any of his followers lifetime. We're still waiting!!!