Do you have a reason to assume they don’t do so? The reported 2:1 ratio is absolutely in line with modern warfares, especially considering the very very densely populated urban environment.
And I'm sure you will accept Hamas strikes against Israel as justified as long as they deem the IDF as a terrorist organization? Or is it only your view of who is or is not a terrorist organization that matters?
We should never let labels like "terrorist" be used to justify using any means neccassary to ensure their removal. There is always the null option - do nothing. How much civilian casualties are there with that option vs. indescriminate eradication of anyone near Hamas?
I mean, fire the general in charge of security and put competent people on your walls to avoid any further incursions, and then work to remove the million settlers you've pushed onto stolen lands.
It's insane how Israel has managed to sell this fiction that they have a right to slaughter tens of thousands because a few terrorists must be hiding amongst them.