When this Gaza conflict started, I saw how the Israeli protested against their government and demanded peace, so I thought there is a semblance of an excuse for glimpses of abhorrence being reported - "it's a small number of people in power, not the Israeli nation doing it, and also there are always 2 sides to the story".
Since then, there have been unfathomable horrors and crimes against humanity done from the Israel side, with extreme intensity and one-sidedness, and it's now been going for so long. I can find no excuse of any kind anymore, for what has been and is being done in Gaza. I don't think any normal person could. The weight of these things, in my mind at least, is such that if the Israeli people really wanted anything different, it was their human duty and utmost responsibility to stop this by now, in whatever way needed. They didn't... It's sad that people who have suffered so much as well, let themselves become the villains to this depth and extent.
It’s not exactly that they consciously want cover to commit atrocities. It’s more that they can’t really conceive of people they don’t identify with as people. They’ll fiercely defend people they know, and they’ll side with people like them, but everyone else is a sort of vague abstract mass.
We see this in the US today with people who support harsh measures against illegal immigrants while they themselves have friends or family who are the targets (or they are themselves). Then they get very confused when their friends or family get arrested and deported, because “illegal immigrants” is this amorphous mass of bad people, not Jose and Clara down the street. You see it with racists who defend themselves with “I’m not racist, I have black friends.”
Such a person doesn’t automatically think ill of the “other,” but it doesn’t take too much to convince them that the “other” is evil and dangerous and must be dealt with harshly.