Gaza is not only dense but well-defended. They have networks of tunnels dug under the city and extending out of Gaza. Fighters can disappear an IOF soldier in 10 seconds in their tunnels and you'll never see him again. The last time they tried to enter, in 2014, one IOF soldier came out of it describing the experience like so: It was hell. Everything you touched could explode against you. Everyone you see could pull a weapon and shoot you as soon as you turn your head. And there's lots of people. You move step by step, as if in the dark, and just hope you make it out alive.
Honestly a land invasion of Gaza might be their nail in the coffin. This is where they do not have superiority. They can bomb Gaza all they want, but they can't invade it and succeed. Both times they've tried it was a colossal defeat for them.
Compound that with the fact that the IOF is a serious paper tiger. They can claim they're the most disciplined army in the Middle East or whatever as much as they want, but video footage shows an army in disarray, shooting at their own, not practising the most basic amount of safety. Remember the video from a few years ago of an IOF soldier picking up a flag someone planted on the Gaza border fence and just casually bringing it up to his mates before it exploded in his hands? All they know is to terrorize civilians, once the civilians start shooting back they don't know what to do.
Yes, but some of them have already been killed by the bombing