> I'm also pretty sure Hamas isn't disguising themselves as children, who make up the largest share of the civilian victims.

Even the very slanted wikipedia article doesn't claim such a crazy thing: https://en.wikipedia.org/wiki/Casualties_of_the_Gaza_war

They do claim everyone under the age of 18 to be a "child", which I know is the UN definition, but is pretty absurd in this situation with Hamas fighters of 15, 16, and 17 years of age being very common.