A pithy comment on Government funding of 'religious' schools

I recently submitted a comment on the Socialist Alliance website re: 'Defend Public Education!' discussion.

Trying to break from the typical boring dichotomies of religious versus non-religious, I wrote:

"Having been a teacher in a Christian school (and being a Christian+teacher myself) AND commited to radical [social] democracy, I take it that the government funding of these schools is not necessarily a 'good' thing for religious communities themselves.

Apart from the obvious issues of distributive justice vis-a-vis public schools (which is a very important issue itself), government funding also undermines the counter-hegemonic impulses in these schools/religions. Getting govt funding requires religious schools to sign up to a whole raft of 'requirements' to ensure that they are in fact "good" for Australia.
Does this then serve to underwrite the social order "as it is"; creating a syncretistic religious schooling system bereft of its 'prophetic' (social critique) function?

The catch 22 of govt funding of private religious schools is that they cease to be very religious in any substantive sense - e.g. when everyone has to gather around the flag to sing the national anthem - and what we might end up with are schools that are purportedly different only in label, and education becomes like the kind of agony one experiences in a supermarket over what brand of pet food to buy in an array of inane chices."

Anyone going to kick my head in for saying this? I expect so...