Look further back in history to the founding of Israel. None of what you imply Israel is responsible for was a thing back then and yet all their neighbours banded together to destroy it. Most of those neighbours eventually lost interest, and now it‘s pretty much only Hamas and Hezbollah. Why? Because they get weapons and money from Iran, which has made it their goal to destroy Israel. Most Gazans just want to live in peace and prosperity. Without Iranian support, Hamas would be gone, attacks on Israel would mostly stop and everyone could finally look toward a future. The Saudis were finally going to reconcile with Israel which would have been a step in that direction, but Iran is making sure we stay stuck in this perpetual war, as they have every interest to.
I'd also be remiss if I didn't mention that the modern phenomenon of violent Islamic terrorism did not exist a century ago. In my view it's basically a direct result of Israeli & Western foreign policy. It's really hard to take land from people and in some cases commit literal massacres (https://en.wikipedia.org/wiki/Deir_Yassin_massacre) and not end up with a significant portion of the affected population turning to terrorism.
That is incredibly untrue. The roots of this conflict don't go back to 1948 or 1967. They go back to 1918 when the Ottoman empire fell. Prior to that jews and arabs lived in relative peace in the same area-- until the allies overthrew the Ottomans leaving a power vaccuum and uncertainty about the future, which lead to frequent civil violence: https://en.wikipedia.org/wiki/1920_Nebi_Musa_riots
What happened in 1948 to trigger all its famous events? The British finally withdrew from the area they called Mandatory Palestine and left the inhabitants to figure it out for themselves. But by then both sides had a lot of distrust for each other from decades of tension. And the British knew they were living a shitshow behind since dealing with said shitshow as precisely what they had bored of.
> On 7 and 8 March [1920], demonstrations took place in all cities of Palestine, shops were closed and many Jews were attacked. Attackers carried slogans such as "Death to Jews" or "Palestine is our land and the Jews are our dogs!"
It is really important to note that the roots of this conflict are over 100 years old, and the reason it didn't exist before is there was a authoritarian empire operating the area keeping the peace and keeping self determination totally off the table for everyone but the Ottoman's Turks.
Since then every country in Middle East existed in one of two modes:
1. Murderous dictatorship (sometimes supporting terrorist groups)
2. Failed state controlled by various terrorist groups.
The only thing the West has arguably been doing in the XX century is moving countries from first category to the second one.
Israel is a happy exception here, although it has many flaws compared to democracies established in more peaceful regions