This is cherry picking, at best. I agree that modern Palestine is a 20th century invention - its Israel's invention. Historically, Palestine was a very diverse place, and bring a "Palestinian" did not mean you were a Muslim or had any particular ideology. A high percentage of Palestinians were Jews and Christians.

But now look... Basically all Muslims. That's not necessarily bad, but why? Its because Israel drove off anyone they could. Only the poorest people remained because they had no means to flee. The same demographic shift has occurred in all nearby states. Israel's aggression towards them has made life there unsafe or undesirable, and the minority populations that could use cultural ties to other countries to flee, have fled. Basically, Israel is causing the middle east to homogenize and islamize.

Israel could have done things differently. This really highlights the differences between Christianity and Judaism, at least in their ideals. Instead of taking and hurting, Israelis could have shared and helped. I'm sure some tried, but the trend was theft and settlements (and kibbutzim are/were literally communist enclaves with state support) and murder of people who resisted. It doesn't matter in what way they are different from you. It doesn't matter if you can point to some historical injustice. Israel committed injustices - actual human rights violations. There's no tit-for-tat - that's unacceptable. All arguments are invalid when you do these things.

So... If Palestine and it's supporters are the monsters you paint them as, then you should at least realize that Israel created that monster. I'm not saying it is a monster - just see that its Israel's creation.