Take a crack at it and I'll try to compose along with you.
I have been travelling and was not able to follow the thread closely. I have interent access at the motel.
There seems to be a serious misconception on my points a page or so back. I never claimed that religion is the sole source of a person's values of right and wrong (nor does it have to be to have a place in politics any more than any other potential source of values). Nor did I claim that saying, "Well God said so," was particularly effective or sound in any debate. Just because an approach is not a good debate strategy in politics doesn't mean it has no place in politics.
I assumed that when people are taught morals in churches, they are also taught why that moral is good so they can justify their position to others. Most people want to have an explanation to support their faith. IS that too illogical to presume? I would hope adults would require more than 'because I said so'. Not being a religious person myself, I gave them the benefit of the doubt. What did Benny Hill say about ass-u-me? Perhaps I assumed something that was not true.
In any event, I agree, a person has to be able to articulate their justification better than just claiming, "Well God said so." Due to the 1st Amendment, a person cannot be precluded from saying that. Doesn't mean others have to accept that as a valid point either. Freedom of expression does not require acceptance. Do not deny the former when you are not willing to offer the latter. "Well God said so," is hardly convincing dealing with someone in the same faith, let alone, someone with a different or no faith at all. That's why I don't tie my positions to God. Does truth have to rely on God to be truth? I would hope not.
On the other hand claiming religion has no place in politics is absurd for both bolded concepts deal with the principles of right and wrong. How can you possibly have a basis for laws to define what is required or what is punishable if you do it, if you have no basis of right and wrong or no moral code? (I recall having a thread on this some time back.) A bad moral code is not the same as having no moral code. A bad moral code offers a basis to legislate.
Because religion is a source of right and wrong, it must have a place in politics.
If you can prove religion is not a source of the values of right and wrong or morality (whether good or bad), or you can prove that all religious values or values from religion have no place in politics, then you can claim religion has no place in politics. In our society we have determined that the values embodied in 4 of the 10 commandments don't belong in politics; those dealing with man's relationship to God. I'm speaking of the values dealing with man's relationship to man. Do any of those belong in politics or do they not? It's rather hard to argue they don't when we have laws dealing with at least 2 of the commandments (Thou shalt not commit murder and thou shalt not steal.)