Have only skimmed through this thread and haven't seen any of the programmes of articles referred to, so possibly just repeating others comments but ....
I believe that schools which receive state funding should be non-denominational, or at least to the level of funding ? 100% funding, 100% non-denominational. However, if they receive funding from a church/temple/mosque etc then they have the right to use religion-based criteria for entry, on the same percentage basis.
Our local school is NOT supposed to be church based yet I have had countless ?discussions? with the head regarding the fact that 99.9% of RE lessons are Christian biased, as are holidays and fun activities (Easter is a real sore point with me at the moment). I am Pagan, and would rather my children choose their beliefs for themselves, not be indoctrinated with a belief in ?God? in the Christian sense. Yet I seem to have no choice in the matter, as this so called non-religious school is anything but.