Gazans' are within their rights guaranteed by international law when they resist an illegal occupation; Israel violates those same laws by imposing an illegal occupation. As occupying power, Israel is clearly responsible for all the dead children on both sides of the conflict.
Why aren't you asking Israel to abide by the nearly 100 UNSC Resolutions calling for its withdrawal from the territories it currently occupies?
Hamas is a self-sustaining governing body, fully subject to the rules of war, humanitarian laws, and decent conduct of its military.
It is a direct violation to house military assets, ammunition, rockets, vehicles, troops, in areas that can be clearly delineated as 'civilian' enclaves. This is what is termed as a 'human shields'. A direct violation of all decency standards and applicable laws, and violates human rights.
Gazans are NOT resisting occupation when they indiscriminately launch un-guided or poorly guided missiles into civilian areas of another country. The deliberate attacking of civilians in any resistance is a violation of human rights and international law. Deaths that occur to civilians due to the placement of military assets in civilian enclaves or areas and boundaries that are clearly of a civilian nature are the responsibility of those who violate these laws.
As a violator of human rights, Geneva Convention protocols and international law, Hamas bears the entire burden of deaths incurred, both Israeli and Palestinian.
In fact, the launching of missiles that deliberately target civilian assets in Israel amount to nothing more than premeditated murder, not an act of resistance in any manner proscribed by civilized peoples.
These dead children are the result of Hamas.