Your post is missing key information. First, it isn't clear that any of the children shown here are dead (the last two shown definitely are not). Second, where do you have evidence any of these children were killed in strikes on civilian homes? Third, where is the evidence that Israel targeted these civilian homes deliberately? Fourth, a rational observer would want to know if any place struck by an Israeli missile lied in an area that Israel showered with warnings to evacuate because incoming missile strikes were imminent. These places may have been targeted because Hamas militants were entrenching themselves in buildings. This is an outfit that is widely believed to have headquartered itself in the basement of a hospital, after all, and they have explicitly instructed Gazans not to evacuate areas they were warned to evacuate. So the location of the targets is important.
All of that takes for granted that Israeli missile strikes were the cause of any of these people's injuries, but I think most of us accept the bulk of Palestinians harmed have been harmed by these missiles. However, if we wanted to stubbornly nitpick what you're presenting the way Israeli claims have been nitpicked by posters like you in this thread, we could nitpick that, too.