I know from reading the Talmud that Jews were raised to hate gentiles or, more specifically, the ways of the gentiles. The hatred in this case I believe had roots in the persecutions, some of which are recorded in the Talmud, and a sense for survival. With these causes, I can rationalize what the people of Judaism were doing. I don't condone their actions; I just attempt to understand their viewpoint.

On the other hand, I can't rationalize why people of Islam believe that their children should be taught to hate non-believers of Islam. The people of Islam haven't faced persecutions nor had to struggle to survive as a people or as a faith. They have built a secure home for their faith in the Middle East. They have been able to create magnificent glories, like the shrine at Mecca or the Shrine of the Rock at Jerusalem. They have been pioneers in the sciences and mathematics. All this was accomplished without fear of retribution or suppression, unlike the Jews.

There are two considerations that I am arriving at:
1. I am unable to rationally understand why any political group feels the need to dehumanize and demonized another political group or its members.
2. I am unable to rationally understand why an unpersecuted group of religious scholars and their followers feel the need to hate non-believers and attempt to erase their existence.

I believe that, with this religious indoctrination into hatred, that the US will be fighting terrorists as long as there are children to be taught these hateful and poisonous beliefs.
 

Combine that with the fact that most religions are limited to a single tribe or other group when they begin, and you have even more incentive built in for the followers of that religion to turn a dim eye on other religions, at the least.
 

Like any business, they sell products, although in religion's case, largely intangible ones, and delivery is never guaranteed.

Like businesses, they advertise. Some pitches are soft-sell, (like charity work) while some are high-pressure (like fire-and-brimstone services)

Like businesses, they seek to insure customer loyalty. In religion's case, this means setting aside 'festival' times, requiring repeat visits.

Like busineses, they become stronger by eliminating the competition, thus gaining a larger share of the market.

An important strategy in the beating the competition, advertising and customer loyalty categories is negative comparison of other businesses selling similar products. "Our Brand is superior to Brand X!" "Brand Y is bad for you!" "Brand Z kills cuddly dolphins!" "Our Brand gives money to charity! Our Brand CARES about people!"

Hence, people of one religion are taught that all other religions are bad. It's merely a way of ensuring that the business continues to take in money.
 

Some people do good things in a name of relgion. Even if their motives are misguided, the fundamental actions are good. The reverse also applies, of course
 

Iff all that's really needed are faith and/or good works, organized religion and churches are unnecessary, as is giving money to them.
 

I give money to Brentwood Hills Church of Christ.

Brentwood Hills gives money to Churches of Christ Disaster Relief.

Disaster Relief sends food and supplies to areas all over the world.

Hardly a waste of money.
 

And you also guarantee that nobody will be pulling that 'food for conversion' scam that the missionaries used to run in Africa.