I get where people are coming from with a kneejerk, "religion is bad!" reaction, but honestly that's not very helpful. The world is always going to have a pluralism of beliefs, and many of those beliefs are going to be of a religious nature. You're never going to get rid of religion, so may as well be realistic about what can change.

Being that virtually all of the most harmful things being done in the name of religion, in the United States, can be traced to a subset of Christian factions, it's more helpful overall to identify and promote the forms of Christianity that are progressive instead. A groups true worst enemy is their nearest neighbor.