Nice try, Rev.
You said: “THe UK were going thru a bad patch in the late 18th century. There was a later revival, which coincided with a revival of Christianity amongst the elite of the UK.”
The late 18th century ended in 1799. England’s dominant religion was the Church of England. It lost congregants to some upstart “religions” that were Christian in name only. Agnosticism increased in popularity; and overall, the 19th century in England was one of religious “diversity” (i.e., moving away from the established Christian Church). With the rise of the industrial revolution English society grew more distant from religion, and participation in religion fell accordingly.
The Revival amongst the elites was in the Anglican Church. Led by, for example, Dr Arnold.