Something interesting that my dad pointed out to me.
Christians are more than happy to kill other Christians who don't practice the faith the way that they do. (Look at Ireland.)
Muslims are definitely more than happy to kill other Muslims who don't practice the faith the way they do. (Sunnis vs. Shi'ites, Hamas's religious leanings vs. moderate Muslims, etc.)
And Jews? Well, when it comes to Jews and other Jews who don't practice or live the way they do, they complain a lot, they treat each other poorly a lot of the time, they tell them they're "not Jewish" or that they're "too Jewish." But you know what they don't do? They don't kill each other en masse.
It just. Doesn't. Happen.
Jews value life, above all. The life that we live in this world is the most important for Jews. We don't worry about the afterlife, what's coming, what's not coming. We live in the here and now, so we cherish life more than anything.
And that's the difference.