It seems that the fact that bacon is sold in US stores proves that the US is a Christian nation. (How this works for the Chinese, who eat more pork than Americans, is not explained. In any case, the author goes on to cite Leviticus to justify the argument that homosexuality is a sin in Christianity. (Leviticus is also where the prohibition of pork is found. In any case, it’s most likely that Jesus kept kosher. It was one of the disciples who abandoned the kosher laws. See Zealot: The Life and Times of Jesus of Nazareth by Reza Aslan.)
The reference for the bacon story is: http://www.rightwingwatch.org/content/fischer-sale-bacon-proves-america-christian-nation