It didn't used to be like this. 50 years ago, in most parts of the country, you not only knew your neighbours but there was a reasonable chance that they were pretty much like you. You were involved in common local activities and institutions. Religiously, you probably behaved, believed and belonged in the same way as everyone else.
Different members of the coalition government feel free to speak confidently about the positive role of religion in society, with a particular emphasis on the UK's historical Christianity. But it remains to be seen whether the Church of England really provides a core, but not co-opted, public role, whilst not excluding those from minority faiths.