I’m opposed to any organized belief system with fundamental tenets based on revealed knowledge from a supernatural entity, and I am radically opposed to any closely held belief that allows for a supernatural entity (deity or otherwise) to be used as the proximate cause or justification for human behavior.
That said, I am not opposed to maintaining certain religious traditions as an important part of cultural heritage, except (as is often the case) when those traditions are used as the proximate cause or justification for human suffering.