Sadly, it all comes down to education!
Their whole teaching is that martyrdom is their reward and preparation of going to heaven to a much better life than what they have here on earth!!
Very difficulty to change that "religion"!!!
How else can you explain that 19 "intelligent" young men are willing to sacrifice their own lives and at the same time killing 3000 innocent people and willing to fly into WTC and Pentagon???
It is the supremacist ideology that they are taught. The kufir are subhuman. In some corners they/we are talked of as the crossbreeding of pigs and monkeys.
Regardless, they see us as second class (or lower) entities. We can be bartered/sold as slaves or killed as you might slaugther a cow or fish.
In Islamic countries there is a distinction under the law between a muslim and a non-muslim.
It can be like looking for a peaceful Klansman. Robert Byrd may not be lynching anyone but he still uses the N-word with all of its intensity. He claims he can do this because there are “white n****** too”. The supremacist thoughts remain.