You were trying to say that Hamas could not set up outside of residential buildings by saying the area is too dense with people for that to be possible.
It’s not. It’s not even close to too dense for that.
Go look at the Satellite maps of Gaza, there’s tons of space they could set up if they didn’t want to risk civilians. Literally half of gaza is farm fields.
UNOSAT analysis shows that the agricultural extent in the Gaza Strip is estimated to be 178 sq. km, accounting for approximately 49% of the total area of Gaza, following an extensive land cover analysis.