It's not on Israel if a terrorist lets their kids play with their tools.
Man has pager in his pocket. Man is sitting down having a meal with his family. Pager blows up in his pocket, killing the child sitting next to him, and probably killing or injuring other family members.
Targeted or not, that child's death is squarely on Israel. They decided that collateral damage was acceptable when they chose this method of mass assassination.
I have a better idea. Replace the Secret Service with Meal Team Six volunteers. There are plenty of hard-right MAGA types that love to dress up and play with their assault rifles. Give them a chance to live out their fantasies with the veryy real condition that they will be held very tightly to the letter of the law.