Martin there is a long standing Jewish business here in my town and they follow their faith. I am a lifelong friend to all of them and respect them. There is not a large Jewish community in the North of Ireland. I can only speak for myself when I say any Jewish family that came to live in my area would be as welcome as any culture or faith.Yes I would say you do know a lot more about your faith than I do. Only once at a synagoge for a funeral. I was born and raised a Catholic, but do not attend the church and am now lapsed.