Ah I see.
Common beliefs don't have to be controlled by religion - ethics and laws are definitely better off when religions aren't involved.
I'm looking at global privileges - but the UK and the US are similar.
The issues with religious tax exemptions are well laid out here: http://atheism.about.com/od/churchestax ... mption.htm
(and here: http://ffrf.org/faq/state-church/item/1 ... f-churches
and there's another interesting article here: http://americanhumanist.org/HNN/details ... m-tax-brea
It's not just tax breaks though - it's also things like reduced buildings costs, legal exemptions/benefits, unjust laws based on religion, advertisement in schools at risk of damaging students education and special benefits if incarcerated...