The bible can be referred to as the Christian bible and I don't think that you disputing that is relevant to this discussion. Lets avoid playing gotcha games.
WBC may not embody your personal view of Christianity, that does not mean that they aren't Christian. They believe in a Christian god and in the Christian scriptures.
They also are right wing because of their views if homosexuality. I bet you could copy and paste quotes from WBC up against GOP politicians and pundits and they would be indistinguishable... Would be much harder to do with liberal politicians.
I wish that your views were those if mainstream Christians, but the evangelical movement is going strong. Hell, we have senators who deny evolution as a scientific fact based on THE BIBLE. Clearly you're capable of rational thought aside from the whole believing in magic thing (admittedly I'm assuming that you believe in the virgin birth and resurrection, which maybe you don't.)