Also the comparision isnt Palestinian children vs Israeli children. It is Palestinian children vs. grown armed men and women aka Soldiers.

Israel could have worked with insurgencies to target Hamas specifically, without having to bomb everything to rubble. That would have risked more soldiers lives though.

So they are weighting their soldiers lifes at a rate of about 200 Palestinains of which 80 are children.

For comparision. In WW2 about 4 Ally soldiers died for one civillian death in the Axis and about 6 Ally civillians, mostly Chinese, Polish, Ukranian and Russian, died for every Axis soldier. So the war of total annhilation, with death squads eradicating entire villages and concentration camps for mass murder still had a much lower rate of civillian to military deaths.