prh47bridge - not all the land and buildings for these schools belongs to the church - more recent VA schools or free schools are usually on council land leased for 125 years at peppercorn rent. Voluntary controlled schools - that have less selective admissions policies - are all Church of England (none are Catholic). There are less than a hundred VC secondaries.
And there are three different ways in which faith schools are proliferating:
(a) As new free schools, which have a cap of 50% on faith places. This does not always include siblings so when well established the faith siblings may come out of the remaining 50% thus reducing access by others.
(b) As new voluntary aided schools which are now easier for councils/churches to set up without needing permission from the Secretary of State.
(c) As faith 'ethos' converter academies which takes on a religious trust as a sponsor and may name VA primaries as feeder schools thus limiting access. Some were community schools for decades and by taking on this ethos they are further reducing the number of schools where all faiths can mix.
Yet it is impossible for LAs to set up new community schools unless they are academies with a sponsor or voluntary aided faith schools. Where was this policy in any political manifesto? It's undemocratic.
tiggytape is right. We have to accept that faith schools will not be abolished, there is an ownership issue and some are popular. But the strains really show in areas with a shortage of places yet where a large number are small faith schools with varying admission policies that distort the local patterns. So the community schools end up being forced to expand to an infeasible size and are still oversubscribed. The faith schools are either popular but restrictively selective, or unpopular because they are not rated outstanding and the faith status is only of interest to a minority.
Faith schools' policies can be anachronistic and inflexible in areas where there is already segregation or the demographic has changed. On top of that, I think the most unfair admissions policies are those which distinguish between, e.g. Catholic looked after children and 'others', or where non-faith siblings have a lower priority, or where even among those of the faith, cetain churches/styles of worship are favoured over others, or points are given for voluntary service which may discriminate against working class families. There is often covert social selection even within religious groups.