A few years ago I watched an interview with one of these "settlers" who insisted that the land belonged to them because "it said so in the Bible." That's when I realized this was going to be a never-ending issue.
Religion seems so much like cultural baggage at this point. Baggage that needs to be shed when it amounts to a negative force within a person's life or community.
No good reason to hate your neighbor because of 2000+ year old grudges.
How many Americans hate their neighbor of a different political party? What is that, a 20 year old grudge? Humans are very good at being tribal, and in vs. out group dynamics. But I should point out, the grudges we're seeing today don't really go back 2000 years. Islam isn't that old, and once it spread throughout the Middle East there were long stretches of peaceful coexistence with Jews and Christians.
As others have pointed out, the grudges in the Middle East are less about religion (though that is part of it) than a deeply complex history of competing claims on land.
The US/Canada largely doesn't experience this because... oh, right, our genocide of the native peoples was so completely devastating.
As pointed out up thread, a huge part of the mess in the Middle East is the result of western colonization. It's worth noting that the long history of persecution of the Jews in Europe, culminating in the Holocaust, was a large factor in the Jews seeking their own homeland. Although I'm not a huge supporter of the modern state of Israel and their treatment of the Palestinian people, I get why they feel the need for their own place in this world.
So the current "baggage" in the Middle East is, in large part, the product of the behaviors and ideologies of western nations, both in colonization and antisemitism. WE DID IT. Yet folks here continue to lecture the brown people of the world (aka our former colonies) that they just need to become like white liberal secularists and dump their religious beliefs, and this will fix everything. Let's call this what it really is: ethnocentrism.