This is an amazing question. From the point of the view the three major religions in our world, the religious communities should logically be at the forefront of eliminating at the prejudices that their respective communities of faith claim to abhor, such as racism, sexism, and the division of people based on social class.
For example, the New Testament says in Galatians 3:28, "There is neither Jew nor Gentile, neither slave nor free, nor is there male and female, for you are all one in Christ Jesus." And the golden rule for the majority of the world is to love neighbor as self.
In light of these points, we could say that there has been some progress. We hear of the reconciliation ministry of Bishop Desmond Tutu in Africa. He really is an amazing man. We also saw the work of Mother Theresa and the work of Martin Luther King Jr. There are also many other unsung people.
However, there is still much work to be done. At least from a general perception level, communities of faith do not do too much when it comes to these division in society.
With that said, we must also make the point that there are legitimate differences of opinions and agreeing to disagree must not be seen as prejudice.