People of different denominations can nonetheless exist in happy parallel to eachother. I'm a Christian but do not personally respond spiritually to the more ebullient 'happy clappy' type of Church, but I've attended one with my frail old friend for many years as unofficial 'carer'. I'm a Protestant C of E but I've attended literally hundreds of Catholic Masses, and gained something profound from their way of worship. I've also been involved with a Methodist church and Scottish Episcopalian one in my time. I suppose I'm quite ecumenical! My husband, who isn't a Christian at all but a Muslim, says there are many many paths leading to the same God. I tend to agree. If only people could adopt that attitude and 'live and let live'.