it isn't one person who is the problem. It is a critical mass of people or the tipping point or whatever. I think we all have the desire to be polite to that one individual who sings off key or songs we don't like or whatever. But then are 4 and then 7 and then 10 and in inverse proportion people leave. The tipping point was long ago reached in many groups. It is not their fault..they don't know...and people will leave the group rather than bring up the subject of the elephant with the blue book in the living room. No one begrudges them their own song circles or groups where they set it up exactly like they like it and others are free to join them or set up something else entirely again.    mg