Thank God for religion (?) -- (6)

One of the problems of religions is that they consider those who are in their group as the family, but for those who are not in their group, they don't consider as their family member. Thus, they apply the principle of revenge toward those people. When your family member is hurt, you will hurt those who hurt them. This principle of revenge helps them to justify their anger and their murdering people who are "not their own family". And yet they talk about only one God, from whom all human being came out. What kind of nonsense is that?

Is there any way that they can admit that those who are not under their religious belief are also the member of the same family--human family? Can those major religions become humble with their ability to understand this simple point? If one of your child hurt your another child, you would not use the principle of revenge to kill that child. Why is it not possible to get through this simple principle? If anyone can find a way to make this happen, I would pay him one billion dollars!