Do you believe in the current system of different religions?

Do you often dream of a world with only one religion and one God?  I think that would be a real paradise when the whole humans are working towards a single objective in mind and that is betterment of life.  We would strive to make this a better place to live. There may not be any religious clashes, bloody murders and other atrocities.

In the current setup people live in water tight compartments safeguarding their beliefs.  Now religion is a very sensitive area and even a minor disturbance can go like a wild fire.

Do you support the current system or do we need a change?