The UN thus far isn’t even able to do anything about “Israel” engaging in genocide right in their faces.
They need to threaten “Israel” with expulsion and revocation of its status as a recognized state…and if that doesn’t work, they need to put bounties on the leaders of “Israel” so that mercenaries can go kidnap them and bring them into court to face trial. If their enforcement options don’t permit bounties…then they should change their rules and then issue the bounties.