Lol, is that why IDF is bombing everything in there even the UN schools? Is that why Israel continues to occupy more and more land every year?
Your government is full of shit. Every time I hear Israeli officials or Nuttyahoo speak on pretty much anything it's always blatant lies that do not meet reality in any way and I always wonder how can people in Israel actually believe that shit they're saying? Do you believe what they're saying?
"Everything", they are bombing every place where missiles are shot from / any place with important people from the Hamas and sadly there are a lot of those. If they really wanted to bomb everything, why would they bring in the soldiers? They would've just used heavier bombs instead of the small bombs they used to minimize collateral damage. Bringing in the soldiers is a bad thing for Israel.
Missiles were shot from a UN school, so they shot back. Are you saying they should've waited until someone would've been killed by those missiles, chatted a bit with the UN about the problem and maybe waited a bit more while they "solve" the problem?
By occupying more land do you mean the people who settle beyong the green line? If so then those settlers are removed from their homes by the army. As much as possible.
I'm not sure about what or who do you mean by "they", but just so you know that, as opposed to what people may think, the media in Israel is mostly neutral or pro-palestinian. No brainwashing pro-Israeli propaganda. They either show the truth or they show mainly the other side's casaulties (which Israel also ends up taking care of. While getting shot at by Hamas ofcourse).
People in Israel usually say things from actually being a soldier or having relatives in the army.
I think you should instead ask "Why does Hamas keep fighting, even though they know it's futile?" It's quite easy to answer - More victims, more pictures they can show, more support for them and more hate at Israel and Jews.
I also find it interesting how so many people protest against Israel when much more horrible things are currently happening around the world. I don't remember seeing such a reaction to the civil war in Syria for example.