Sometimes You Are Your Brother's Keeper.

https://www.tmz.com/2024/11/26/liam-payne-prosecutors-clarify-why-accused-friend-of-abandonment/#continued

However only when there is a defined Duty of Care. Even then your are not being collectively punished for the crimes of your brother but for your individual failure in that Duty of Care.

I will need to check to see whether under the actual Laws of War a Governing Authority has a Duty of Care to provide its civilian population with bomb shelters.

However if the ICC is of the opinion that the destruction of medical facilities as the Crime Against Humanity of Extermination by way of the denial of the essentials of life.

Then it should indict Hamas as a legal entity.

https://twitterwithbraincells.blogspot.com/2024/11/any-word-on-one-muslim-friend-yet.html

Whether it does so or not. All members and supporters of Hamas are legally liable for the guilty act.