Here is the flaw in the argument though, Christianity is not one particular religion but rather a collection of religions all of whom believe that Jesus Christ was the son of God. Their differences are in how they choose to worship and if the follow the Pope or not. There is no particular religion being enforced upon people and there is no restrictions on the freedom to practice other religions as well. When someone proposes a bill saying that Catholicism is to be the state religion of the US and all other religous sects are outlawed I will stand up and cry fowl. (I am Catholic BTW) But if my town wants to put a Menorah on the town green I am not going to be upset about that because I can be tolerant of others faiths and recognize that displaying anything religous is not an imposition.