The Mess We've "Caused"
There is some truth to Greeley's statement. If we hadn't invaded, those children would, in all probability, be alive, just as it's true that the Golden Dome would, in all probability, still be standing.
But Greeley connects this fact to the Catholic just war principle. In that, it is morally acceptable to take an action (such as bombing) that causes both good and bad effects (removing the ability of bad guys to hurt people while killing innocent people) as long as A) your desire is for the good effect only (if you could acheive just the good effect you would) and B) the good effects substantially outweigh the bad effects (you can't wipe out an entire city to get one bad guy). I agree with the moral calculus, but Greeley misapplies it, as do all who say we "caused" the bombings of children or mosques.
The difference is, in my view, causation stops as soon as another moral actor enters the picture. If I drop a bomb that kills both a guilty person and an innocent person, I've caused both deaths. If I drop a bomb that kills only the guilty person, but some other person reacts to this by choosing to kill an innocent person, that other person caused the death of the innocent, not me, even if that other person would not have made that choice absent my action.
Greeley, and thos like him, have the peculiar bigotry of leftists to treat only Westerners (and Israelis) as moral actors. Other people are like animals or physical objects. They do what they do, we can reasonably predict what they will do, and all moral culpability falls on us. We didn't cause the Golden Dome to be bombed. The bombers did.