Are all religious arguments a bad basis for laws?

It seems to me that the expression "religious argument" can mean one of two things. It can mean that the argument is based in its entirety on the specific teachings of a particular religion, such as the teaching of the Jehovah's Witnesses that blood transfusions are wrong, or of Catholics that birth control should not be used. These make bad laws, to be sure. But it could only imply that human beings have a purpose for their existence which is not of their own making. Would an argument that implied that "religious" in the negative sense and therefore an inadequate basis for law? This would be affirmed, it seems to me, by most any theistic religion, and rejected only by atheists or materialists (the doctrine that everything is matter). Is it necessary for a claim to be acceptable from the standpoint of materialism in order to be acceptable basis for law?