UK - Christianity declining, Atheism rising, but so is Islam...

[TheMessiah]

I'm not really sure what the muslims are doing to spread so quickly, unless it's through fear. though you'd think in a more developed nation people would be more eager to call the police than convert.

PEW surveys show that Muslim families have more children on average - it's far more likely that their children will retain their faith as apostasy is stricter in Islam.

Also immigration in Britain is quite high.