If what you say is true, then the most
correct course of action would have been to report the thread to a mod and ask that it be relocated to the appropriate section.
But I do not believe it is inappropriate.
Here is what I think is inappropriate.
Having the name of a deity I do not believe in on my currency.
Subsidizing churches, which do not pay property taxes, with my property taxes.
Being expected to recite the words "under God" in a pledge of allegiance to my country.
Being subjected to prayer out in public. When this happens, I do not bow my head. I stare straight ahead; and think about pornography - the pornier the better.