The UK is much, much more secular than the United States.
The Church of England has had a steadily declining membership over the last 20 years, to the point where clergy are finding it hard to find (and hold) a viable congregation, and churches are being decommisioned (often coming on the market as refubished condos or SFRs).
Church attendance is very, very low, and is not increasing, due to the fact that the large percentage of church goers are aging, and younger people are not replacing them.
Most people see the church, and consequently christianity, as an outdated paradigm that has little to offer people in the modern world. Certainly, any body, group and individual that tries to impose christianity is met with resistance and resentment.
To use a housing analogy – comparing The C of E with christianity in the US is like comparing Apples with Oranges.
