Well, Jesus as the historical figure is thought to never have actually claimed divinity. His references to being the "son of god" is equivalent to the teachings of many different eastern beliefs that each person carries the divine within them, that Jesus was saying "I am the son of god, as are we all sons and daughters of the divine." There is strong evidence that Jesus' "missing years" were him doing what many prophets of the time did, traveling to the east to learn the mystic healing methods and herbal studies of the East.
Many of the prophecies were not fulfilled by Jesus. However, that did not stop many scholars of the day from trying to match the stories of "the christ" or what Judaic prophets had predicted to the person known as "Jesus." Beyond that, the modern incarnation of the "Bible" was written by people who assumed the names of the disciples to give their points of view credibility. If you study it historically, all of the manifestations of modern Christianity are based off of forgeries.
However, that does not invalidate that the person known as Jesus had reasonable teachings that should be evaluated and potentially followed.
I am of the opinion that there are prophets but there is no physical Messiah as no one person can embody the energy and knowledge of eternity of everything and still exist corporeally. Beyond that, no matter how true the teachings are of a Messiah (if he/she existed), people are bound by their habits and comforting illusions and would likely destroy the individual, commit them, or simply ignore them meaning there would be no significant change in "the whole world."