I'm confronted by many who say we as Christians don't believe that God holds the generations responsible for the actions of their parents.
Well tell that to God when he cursed those who killed Jacob, they were cursed and cut from the tree.
Cains bloodline was cursed him and his shall wander the earth and they will have a hard time growing food.
Their curse is still on going people, Jesus is their salvation, but they had Jesus killed and worship Satan. They refuse him to this day as they did back then and they want his real chosen tribes wiped out. The reason the sin is held against the children is they are taught it by their parents to continue their lack of brotherly love to the Gentiles (all who are not JEWS).