I have no idea just how Christians in the UK are affiliated with Eastern Christianity .
There are a small minority of Lutherans and Evangelicals But The Majority of Churches in Jerusalem and Bethlehem are Catholic , Eastern Orthodox, Coptic , Maronite . The Church of Saint Anne is considered a French Domaine.
The Holy fire ceremony for example is so important it’s broadcasted live on TV in Many countries , so naturally there is a strong affiliation and sympathy with Christians in that part of the world . so it’s easier for them to legally immigrate.