>>Christianity is the main religion in Great Britain. There were 41 million Christians in 2001, making up almost three quarters of the population (72 per cent). This group included the Church of England, Church of Scotland, Church in Wales, Catholic, Protestant and all other Christian denominations.
Census, April 2001, Office for National Statistics
Census, April 2001, General Register Office for Scotland<<
Seems Christianity is actually alive and well in the UK.
Sorry, check your facts first.
You might WANT to think its not effective, but the stats show a different picture.