And why is that?

Some of the most intolerant, hateful, and just plain baffling things I've read recently have been written by people who claim to be Christians. The chief targets seem to be homosexuals, Islam (and anyone who practices this religion or even claims to be Muslim), and Obama (or as I read today "the Obama regime"). From my years of attending church while growing up, I somehow don't recall such behavior being acceptable. I have always thought that a Christian should practice forgiveness, loving (and not judging) others, and not spreading falsehoods or hatred. I was therefore somewhat encouraged to read this: From Jim and Tammy Faye to Evangelical Punk Preaching: Q&A with Jay Bakker.