We from every religion feel comfortable in Britain because there is a host. The Church of England is a good host, it has been a major force in shaping England into such a tolerant society.
A Martian would think that the English worship at supermarkets, not in churches.
In her religious role, the Queen is head of the Church of England, but in her civic role she cares for all her subjects, and no one is better at making everyone she meets feel valued.
A survey carried out across the U.S. between 2004 and 2006 showed that frequent church- or synagogue-goers are more likely to give money to charity.