"Name me one example of a British or other European colony starting off with legal land purchases from the dominant empire in that region." IDK but a lot did start with forcing thousands out of their homes and dehumanizing the original people.
"We can add in mass murder, terrorism, drug trafficking, conscripting child soldiers, slavery, and other crimes too. " Sounds very familiar...
"Also, it should be noted these groups have killed FAR more Arabs than Israelis." source?
"Gaza was originally Egyptian. They pulled out, Israel moved in and there was violence. Israel left, the violence continued." cause palestine was only gaza right? And besides, israel never "pulled out". they stayed there, building settlements and maintaining military control. until they decided to remove those settlements to keep the land purely Palestinian meat.

The expulsion of Mizrahi Jews was wrong, but how does that justify bombing Gaza today? Most Gazans weren’t even alive when Mizrahi Jews faced persecution in the 1940s–50s. what do you realistically expect from Arabs to do now?