ICJ has made no such finding. They will probably making a ruling on genocide allegations in the coming years; they certain have not made one yet. The opinions they've issued so far are here https://www.icj-cij.org/decisions
ICJ found the accusation plausible, and did later in another case conclude that the israeli occupation of palestinian land and apartheid is not lawful and must stop.
Whether ICJ had found genocide perpetrated or just plausible does not matter very much since international law demands that even the risk of genocide triggers state action to put an end to that risk. The ICJ judgement regarding plausibility also made demands towards Israel, which that state has refused to comply with.
Starving a population of millions and systematically destroying their homes and infrastructure does not become jolly fine and dandy just because some court hasn't yet deemed it genocidal.
ICJ found the accusation plausible, and did later in another case conclude that the israeli occupation of palestinian land and apartheid is not lawful and must stop.
Whether ICJ had found genocide perpetrated or just plausible does not matter very much since international law demands that even the risk of genocide triggers state action to put an end to that risk. The ICJ judgement regarding plausibility also made demands towards Israel, which that state has refused to comply with.
Starving a population of millions and systematically destroying their homes and infrastructure does not become jolly fine and dandy just because some court hasn't yet deemed it genocidal.