There are all kinds of groups, for all kinds of people. This is America, where everybody has a voice (or is supposed to). It does seem that Christian groups are being shut down, where Muslims or other faiths are fighting for their rights to have their say. I personally don't understand this. I would not be comfortable in a group praying to "Alah", so therefore I would not join said group. There is usually enough for everyone, and respect needs to be given to all groups. If you are uncomfortable, don't go... or, just go in later, as suggested.