Keep the English. An organization to be successful has to have a focus. English country dance and folk music emphasizes the cultural aspects of England which can include
diversity without sacrificing a focal point.

Being too broad and all inclusive really degrades the essential idea, the important aspects of a specific heritage.

I say this as an American that wants to see our country focus on the national heritage of our folksong and folkdance music, (or vice versa).

Trying to grow too big by including everything defeats the initial purpose of the organization.