Most of the reasonably committed Christians I know read their bibles regularly.
If you want to make a strawman for Christianity, you point at the Old Testament or Crusades and go "Durr, violence!"
If you want to make a strawman for Islam, you point at the Middle-East or 9/11 and go "Durr, violence!"
If you actually want to make a reasonable argument for or against either, you'd have to actually read the texts and know which ones are relevant; because of that, I can't say anything about Islam. Christianity, on the other hand, I can.
The Old Testament is not as totally relevant to Christianity as a lot of people seem to think it is. What is important is the New Testament; the Old provides context for a lot of things (see Isaiah 9, etc.), but contains significantly less that is of importance than the NT does. A Christian trying to be a Christian from the OT would not, in fact, be a Christian.
No see that is the exact wrong thing to happen! You don't want people reading the bible, there is a lot of violent crap and bad advice in there. You will have people killing birds to cure illness and stuff like that.
All you need to do is denounce the more extreme as not being real Christians/Muslims/Buddhists/Hindus/Tengrists/Great Rainbow Serpantists/Pastafarians and that the moderates who aren't advocating death and violence are the true believers, and give them all enough reality tv that they never feel compelled to actually look at the scriptures.
Nah, nah. You optionally denounce the radicals, but then tell them to read the Bible/scriptures and see for themselves that violence isn't advocated.
The Crusades was a political war, infused with religious themes.
This right here. The church of the Middle Ages was a political entity as much as or more than a religious one, which bears remembering. Essentially, the high-ups in the medieval church were not particularly Christian.
Bleh. Post doesn't have much structure, sorry. Disclaimer: I don't speak for everyone, etc.