Jessica Montell, boss of B'tselem, has written Mondoweis to say that she's not certain there was an explicit Israeli intention to harm the populace of Gaza, but that an independent investigation would tell us more than we presently know. And of course, intention or not, Israel did all sorts of awful things in Gaza.
The readers of Mondoweiss don't like this line of reasoning, ultimately saying that no Israeli investigation will ever tell the truth, and Montell herself is too Israeli for their taste, and too squeamish (I'm paraphrasing).
I've got my issues with Montell and her small corner of Israeli society. Yet they are rational, facts matter to them, and they wish Israel would do better according to their lights. While the result of their actions is too often to supply false fodder to Israel's enemies, that's not their putative goal.
This means there are fundamental differences between them and the Mondoweiss part of humanity. The Mondoweiss gang imbibes a diet of untruths, outright lies, warped interpretations and malice. It's not possible to argue with them, because their assumptions, methods and frames of references are constructed so as to strengthen their opinions, irrespective of reality. They're so far out that a radical Israeli such as Montell is ultimately unacceptable to them, since she does care about facts, and does think that Israel can be saved from itself. The Mondoweiss gang don't think Israel can be saved from anything because in their minds, Israel is the problem. The root cause of Israel's evil is that Israel is evil.
The Mondoweiss community puts daily efforts into maintaining their edifice of malice. They've got a detailed narrative of Israeli evil, and they're constantly tinkering with it, bolstering it, adding new layers, incorporating events as they happen (or rather, incorporating a false version as reality does something else). They work hard at it. For these people, hating the Jewish state isn't a passing interest or an idle whim. It's a passion; it's a collective effort; it's a cult.