@hightor,
Not really. Britain is not very religious.
Tony Blair famously refused to answer when asked if he prayed with George W Bush.
The phrase "real Great Britain," does not exist.
We're all too nationalistic for that, real Scotland, Wales, England maybe but even then it's too divisive.
Scots don't want to alienate other Scots.
We have an established church, Bishops sit in the House of Lords but they tend to be quite muted.
The big religious story now is whether it's profane for the Church to have a silent disco in Canterbury Cathedral.
( That's like our Vatican.)