When I read things like that, it occurs to me that it would be at least 5 or 6 generations before they could have any sort of civilized society again, with sickness like that permeating the culture, the family, the education system, and even the children's cartoons. It's sick.
A mother being proud or celebrating that your son died killing an unarmed woman and her two children out for a shopping day is indicative of a very sick society.
There is no swiftly recovering from that no matter what happens. If Israel disappeared tomorrow, they would still be a sick society for a long time into the future, long after you and I and our children and grandchildren are gone.