Sadly, in my experience there always seems to be some kind of drama in organised religion. Always in fighting and back stabbing. Whether it's something you did or didn't do is at this point irrelevant, because you are out. It is what it is. So, I'd go find another choir to sing for. Maybe there would be others who would buy into your exuberance and questions.
Maybe this would be an opportunity for you to look at your part in it. Do you question authority? Do you go against the grain? So, when you find another choir, dial it down a bit. You're not the only one singing, you must play well with others.