Now you're making things up. Kids have concepts of right and wrong long before they've got the mental faculties necessary to derive them on their own. Your error is that you're talking about kids as if they exist in a vacuum. But they don't: they pick things up from their families, and the people they're around.
Do you really think that ALL (ALL is what you've implied) nine year old Muslims kids -- in contrast to what their insidious elders teach them -- can't use abstract reasoning to KNOW that suicide bombings are evil?
No. In fact, even YOU would probably be hard pressed to do it, because there is moral latitude even with something as extreme as a suicide bombing. For example, suppose that you have a choice of blowing yourself up and killing somebody like Hitler, thereby saving millions. Would that suicide bombing be evil?
Please see your remarks regarding item 4 in post 83 ...
4. And, in fact, a lethargic indifference to ethics, a hopelessly cynical amorality -- since his questions involve situations which he is not likely ever to encounter, which bear no relation to the actual problems of his own life and thus leave him to live without any moral principles whatever
... and then reconsider your own comment to that item 4 ...
"Huh. I wonder what dark recess of Rand's mind that crawled out of?"
As a direct answer to the ethical question you ask, the answer is yes because there are better ways to rid the world of dictators.