1. Hamas was located in a significant want under Al-shifa. Israel released video of our commando unit raiding it. You can find that video online. Hard to watch.
2. Because they're angry and they're being stupid and reacting emotionally. Please understand, they raped our women, tortured them and then murdered them. They did the same to our men, old people and children. Imagine for a second if a specific group did all that to lots of people that you loved and cared for. How would you feel? What would you post as you took your revenge? Israel is a tiny country. Everyone knows everyone. Everyone is related to everyone, or is at least friends with them on some way. So the disrespect is because they are furious with our enemy, and our enemy identifies specifically as religious muslims and arabs. Hard stuff.
3. Oh wow that's a hard one. It's complicated. We're in a war to claim territory with the Palestinians. I mean, you could reverse the question and ask "why are the Palestinians occupying Israeli land". The Palestinians arent a people, per se. They are the random groups of different arab families that were living in the area at the time of the creation of the state of israel. Some are from iran, some from Syria, some from Jordan, egypt, etc. so we are not "occupying" their land because there is no "them".
Really what needs to happen is that we need to be separated. We can't continue to live in an intermingled fashion like this because it's too messy and unsustainable.
But.... that's a problem for another day. For today we just need to deal with Hamas and Hezbollah.
Good night =)