Should be careful or similar trend, targeting the weak, can happen among any people.
Photos of IDF sniper training graduates' t-shirts
You can buy those t-shirts in the old city of Jerusalem. They are being sold by Jews and Arabs and are made for tourists. They have nothing to do with the IDF. The particular examples are plainly racist.
I'm not sure I understand your point.
I myself point similar t-shirts, one with a picture of an F16 fighter and the words "Don't worry America, Israel is behind you" and one with the symbol of the Israeli intelligence service and the caption "I'm work for Israeli Intelligence, my job is so secret, even I don't know what I am doing.". (Of course, if I wore these in public, I would get beaten up.)
None of these t-shirts have anything to do with the IDF, they are just making fun of the military, some good-hearted, some not so much. You can buy them in Arab East-Jerusalem.
But claiming that these t-shirts are printed by the IDF and/or somehow represent IDF opinion is rather dishonest.
(It tells you something about the anti-Israel movement when you realise how dishonest they are. Or maybe they really don't know. Maybe they just saw those t-shirts somewhere and "concluded" that they are made by the IDF.)
And some ex-soldiers' testimonies indicated Israeli snipers targeted Palestinian children in the last Gaza assault while Mr. Barak finished the investigation and concluded "that was jus a rumor". After that, I read the news UN appointed a Jewish from South Africa as an investigator of the Gaza conflict. I don't know whether Israel accepts his investigation or not, but I expect their inspection to be fairly conducted and its result.
Those ex-soldiers have now admitted that they were quoting press articles and didn't actually see these things. One of the two wasn't even in Gaza.
I don't think Israel should accept the investigation. It's a waste of money. There is a genocide in Darfur the UN ought to do something about it first, or is one Arab really worth a thousand black Africans?
Think about it logically: What would be the point? The soldier risks prison time and Israel risks (more) bad PR.
You really have to stop believing this crap.
It's not a good reason, but it's more than just the weakness angle. If it was purely weakness, they'd target hospitals and nursing homes more often. Attacking children is an attack on the future. That's basically the symbolism behind it.
They do target hospitals and nurseries more often. In Israel many people don't even lock their doors because crime rates are rather low and it is really safe. But any building that contains more than five Jews needs to check people for bombs and weapons at the door.
You never know when the freedom fighters strike, and your child if you have one, could be just the oppression they "resist" today.
Going to your African genocide/Darfur model, it's why the genitals of victims are often mutilated, eg 'you people don't deserve a future'.
They are only blacks. They are not worth much, not to the Arabs, not to the UN.
Imagine if the world had four billion dollars for the slave population of Sudan.
You know what would be interesting? If through some magic all Palestinian Arabs were suddenly transferred to Dafur and southern Sudan and all Nilo-Saharan tribes from there were transferred to Gaza and the West-Bank. I wonder how it would work out if at the same time the same magic causes both groups to forget any attachment to the land.
My assumption:
Israel and the Nilo-Saharans would make peace immediately. All borders would be open, Israel would have a large pool of cheap labour as wealth among the black tribes increases, Christian and Muslim tribes would live together in peace in Gaza and Bethlehem and Jericho. Gaza would become a major trading port and the black Africans, freed of their Arab masters would become a major trading power in the Mediterranean.
And Sudan would murder a few ten thousand "Palestinians" like so many Arab governments did before while the world ignores them and watches intently whether there is _any_ sign of anti-black racism in Israel or any evidence at all that the conflict was Israel's fault and should continue now that only the peaceful Arab victims have been removed from it and replaced with those no-good black Africans.