I am going to start with some clarifications about how I see this topic. Some of what I say may be a bit repetitive, but I think it can be helpful. I do not see this subject as mainly about the force of the Establishment Clause. With Judge McConnell, I think there is a big difference between promoting a religious position, let's say, which I think teaching creationism is, and deciding some moral or political issue based on a religious judgment, such as whether there should be restrictive abortion law. And I do not think this is a question of whether anyone should be restricting advocacy in religious terms. The question is whether people should ideally restrain themselves in some way.
Law | Law and Politics | Religion Law
Brief Comments on an Intermediate Position,
Regent U. L. Rev.
Available at: https://scholarship.law.columbia.edu/faculty_scholarship/3360