No, it isn’t
One should be clear that this sociopathic indifference to (or even celebration over) the deaths of Palestinian civilians isn’t representative of all supporters of the Israeli attack on Gaza. It’s unfair to use the Goldfarb/Peretz pathology to impugn all supporters of the Israeli attack. It’s certainly possible to support the Israeli offensive despite the deaths of these civilians, to truly lament the suffering of innocent Palestinians but still find the war, on balance, to be justifiable.
No. It isn’t.