Jesus unambiguously preached mercy and forgiveness.
"He that is not with me is against me" (Matthew 12)
"And whosoever speaketh a word against the Son of man, it shall be forgiven him: but whosoever speaketh against the Holy Ghost, it shall not be forgiven him, neither in this world, neither in the world to come." (Matthew 12)
"But he that shall blaspheme against the Holy Ghost hath never forgiveness, but is in danger of eternal damnation." (Mark 3)
Not that I don't agree there is a certain amount of hypocrisy amongst evangelical christians. However, the bible is a horrible book in many ways, and consists of multiple contradictions and horrible passages that can be used to justify pretty much anything
. If the author is claiming it is "unambiguous" in it is message, then he is possibly falling into the same trap as the evangelicals.
Of course, conservative Americans have every right to support corporate greed, militarism, gun possession, and the death penalty, and to oppose welfare, food stamps, health care for those in need, etc. -- it is just strange and contradictory when they claim these positions as somehow "Christian." They aren't.
Another problem with the article is the assumption that his interpretation of these issues are somehow more "christian" in nature than the evangelical's.
Corporate greed? Who said that all instances of "corporate greed" are done to the detriment of others? Corporations earn money by engaging in business transactions that are often mutually beneficial.
Condemning gun possession as "unchristian" assumes the gun will be used in a violent manner; it ignores anyone who wants to use them in "peaceful" ways (e.g. target shooting only) or for personal protection (and I don't recall anything in the bible that says you can't prtect yourself.)
Welfare? Well, it could be argued that the bible teaches us to treat others well. But is Welfare actually an act of "charity/generosity"? After all, when the government gives money to someone on welfare, it isn't necessarily coming out of the "christian's" pocket, but out of the pockets of others; i.e. it can be viewed as a form of 'theft'.
Now, I'm an atheist. There is no god, and the bible is a piece of carp. But the arguments put forward by the author are basically flawed too.