Comment 19 by JeffVader67

What they can't accept is that Church schools ( Particularly RC ) are hugely popular with parents ( Though obviously not the tiny minority of Guardian reading types ). They are also routinely at the top of the league tables, and massively oversubscribed.

What relevance does this comment have to the argument against faith schools, even if your slightly dubious assertions are granted?

The secular argument, on this point, seems to be:

Premise 1 - Discrimination against workers on grounds of religious belief is unfair

Premise 2 - Faith schools discriminate against workers on grounds of religious belief

Conclusion - Faith schools' practices are unfair

You are perhaps suggesting some additional premises?

Premise 1 - Discrimination against workers on grounds of religious belief is unfair

Premise 2 - Faith schools discriminate against workers on grounds of religious belief

Conclusion 1 - Faith schools' practices are unfair

Premise 3 - Discrimination against workers on grounds of religious belief is not unfair if the results are popular with parents

Premise 4 - Faith schools are popular with parents

Conclusion 2 - Faith schools' practices are not unfair

...or maybe:

Premise 3 - Discrimination against workers on grounds of religious belief is not unfair if the discriminator achieves better results

Premise 4 - Faith schools achieve better results than non-faith schools

Conclusion 2 - Faith schools' practices are not unfair

Is that your contention? Feel free to redraw the argument(s) you are putting forward as you wish. In particular, you need to do a bit of work around the two P3s, which look dodgy to me, and the second P4 doesn't seem to account for confounding variables. Or maybe you're simply saying that you approve of unfair practices?