It's not surprising though. The 9/11 hijackers also had a belief and followed through at no small cost to themselves (death). And they believed they were doing the right thing.
My point was more that I see a lot of mainstream Christians who aren't actually interested in doing anything based on their belief that affects their quality of life.
> a lot of mainstream Christians who aren't actually interested in doing anything based on their belief
Yes, a lot of mainstream Christians aren't actually Christians, they're just cosplaying religion.