We don't have to believe in their religion, but we should learn to allow others to believe as they do. As a Mormon I have seen an interesting phenomenon. Our faith started out with persecution and mob violence against us. In time we have become a more accepted religion, not totally accepted , but more accepted. Now there are Mormons who persecute other people for unpopular beliefs. Those who persecuted us were themselves descended from a persecuted religious group.
Could we break the chain in our generation? Could we be the ones who learn to tolerate each other's beliefs. That would be a truly better society.