If sitting down and rationally and peacefully talking among people of different religions is unworkable, perhaps creating interfaith families would be a way to bring disparate people together.
She began her letter by stating that the book I just purchased from her contained within its pages a philosophy that she adamantly disapproved of. She then proceeded to regale me with the story of how, one blessed day, she received a personal visit from her Lord and Savior.
Those who would manipulate the masses to their own advantage invariably draw on the power of passion. And for most of history, and never more than now, religion is the passion of choice.