I don't disagree with you Prof, the academic achievements/pastoral care come first; I've just known people who did cartwheels to get their child into a faith school. Some of the faith schools were quite good too, led to good places in vith form. Depends where you live.
Again you seem to be focusing only on those desperate to get their kids into faith schools, and ignoring non faith schools.
Sure there will be differences in different parts of the country, but overall it is pretty clear that it is the non faith schools, as a category of schools, which are the more popular when compared to faith schools.
My area is somewhat extreme, albeit not out of step with the overall view, in that of the 9 secondary schools in my city the 6 most popular are all non faith, the three least popular are all faith (and that includes one with an exceptional academic record, yet is less popular than even the non faith school with the poorest academic reputation).