I’m an atheist, and obviously a lot of evil things have been done in the name of religion, but I think there are some incredible things that have resulted from it, too.
People were given solace in times of sorrow. They were given a hope for justice in times of tyranny. The art of the Sistine Chapel, or Buddhist temples, or incredible songs that resonate because of their religious imagery. You wouldn’t have Hallelujah or Spirit in the Sky, and on the other hand you wouldn’t have Imagine - or at least it would hit different. Some addicts rely on it to help them fight addictions.
Some religious traditions helped with sanitation and preventing the spread of disease in a time when we didn’t have other tools to make people understand.
So in the end I think religion has done and continues to do tremendous harm and is mostly an evil force, but there are some incredibly beautiful and important things that came from it that are worth celebrating.