You should look a little deeper into the history of modern Israel and Zionism. It's always been a colonial project that necessitates genocide of the local population. I'm not going to get further into it here as it's not really the place for this and people have already done the work. If you haven't seen shaun's video id recommend at least giving it a watch. I'll leave the iron wall as well. It's a short essay from one of the founders of Zionism. His views were quite explicit and highly influential at the time and his legacy is obvious in modern Israel. And lastly The Hundred Years' War on Palestine. It's a good book that plainly lays out the history of the Zionist colonial project from 1917-2017. I'm only halfway through it but it's worth your time. Or just watch the video, it's cites both the essay and book (among other things) and ties it all together very well.