Travis, I wasn't going at you. I think I have previously acknowledged your post and generally agreed with much of what you said. My point was merely an effort to solicit additional discussion regarding a topic that I find interesting. If it seemed a solicitation to espouse "wacko" viewpoints, my apologies. I threw out questions that are an hetical to my beliefs on this subject, hoping that someone who disagrees would engage me and offer an argument. You can learn a lot from those who oppose your viewpoints, after all.
I do have a question when it comes to public displays of religious symbols -- I agree with you about private individuals erecting religious displays. I can't see how the Cons ution can preclude such acts without interfering with the Free Exercise right. I do think, though, that a permitting process would start to come close to governmental entanglement with religion, particularly if the government accepted some permits and denied others, and couldn't articulate a religion-neutral reason for doing so. (I realize that your hypothetical supposes no discrimination, but the existence of some degree of discrimination is very difficult to legislate out of political life) I would think that would apply primarily to a situation where a Christian group receives a permit to erect a public Christian-based display, but a group of another religious bent (Muslims, Satanists, Santarians, Atheists, whatever) is denied the opportunity to do the same. At that point, the government is, I think, endorsing particular religious viewpoints (and, perhaps, endorsing religion over non-religion, in some cases).
The other question about overtly religious displays in the public square is this: does your statement stand up when the government is the en y displaying the symbol? That is, if the city government decides to erect a public display that includes religious symbolism, is there a cons utional implication? I know the Court has decided the issue, but is there a basis for re-thinking those conclusions?