Even as a non-believer, I can see that there does seem to be a double standard, and in some cases, perhaps, Christians are legitimate in feeling ignored. However, I don't believe there is any religious requirement to wear jewelry to show one is a Christian, so perhaps that school was acting reasonably, even if it does seem unfair and upsetting.
The term 'persecuted' has been used, but it would be better for Christians to stop using that term, and leave it for the truly persecuted, whose lives are being threatened elsewhere in the world.
Unfortunate that SolidGoldBrass does not appear to acknowledge those who don't feel as she suggests, and as for "not allowed to persecute other people" (do you really think that?) - I'd suggest not bothering to argue that point at all, it looks as if it was posted to provoke hostility not discuss with any degree of balance or understanding.
Councils certainly seem to have "bent over" too far and perhaps no longer have adequate perspective, especially if their 'faith' advisors have been drawn mainly from non- Christian groups, which might be the case.
After my morning walk, I caught the last 15+ minutes of "Sunday" on Radio 4 before 8am (not a regular listener, you understand!), and it carried two interesting discussions, one with political parties on their policies for schools wrt religion, the second on this "persecution" complaint too.