The problem is that even though we are in the 21st century, the mindset of many people around the globe isn't in line with it.
There are some many who are stuck in the 12th century, others in the 18th and so on.
The majority of the Arab world is akin to what Europe was around the 12-15th century. Illiteracy is high and the people have very little in their lives other than their faith. I don't even think some are bad people, just people who are stuck in a medieval thought process.