If your constitution allows for outright fraud in any area then it should be scrapped for a better written document.
We are talking freedom from religions here and not freedom of religion.
We are secular countries and secular law rules religions. Religions do not rule secular law.
I do not exempt religions from the law and hold them to the same standards as any individual and other con men.
Why would you want to give religions a higher level of lying standards than the rest of us?