The ICJ case filed by South Africa I feel is the only concerted campaign I am seeing that pressuring Israel against committing genocidal settler colonialism (outside of the resistance by some Arab countries).
If ICJ is not a kangaroo court they will end up ruling their actions as genocide. The evidence is plenty.
Can any good come out of it? Or is it hot air?
nothing. it will be in the news cycle for a few days at most and everybody in the west will forget about it.