There are many interpretations of the bible, just witness the baptists in Texas or the south which forbid dancing and compare that to Methodists or Presbyterians who allow homosexual clergy. The bible says nothing about priests marrying, that was decided in 1139 and openly flaunted until the middle ages and the council of trent.
Among the christians, catholicism seems to instill more guilt in its devotees than the happy-go-lucky protestants with the exception of hellfire preaching southern baptist sects which believe every word in the bible is gods divine instruction. Some protestents believe the bible is writings of jesus' contemporaries and follow its more general instructions rather than specific instructions. Such as "do unto others" rather than "no meat on fridays".
There is not an easy explanation, just like most moslems are peace loving people who have no heartburn with the west, you cannot characterize all christians by one religion. Most religions have no heartburn with evolution vice creationism either, except for kansas (remember a few years ago?)
I just hope that jesus protects me from those he speaks directly to.
And like the original thread clarified, only the crazy ones make the news, the moderate religious folks who go to church every week, accept other religions, and do good in their communities are too boring.