The vast vast majority of Jews in Israel now are Ashkenazi. Ashkenazis are from Khazaria and converted to Judaism between 740 and 920 AD. Even from this population, there is a bottleneck around 600 to 800 years ago where the population was down to 350 individuals [1].
By and large very very few Jews in Palestine/Israel are able to claim Levantine/Semitic genetic ancestry.
Many Palestinians and other Levantine people in Palestine who now practice Islam are far more likely have to have ancestors that were once Jewish that actually lived in historical kingdom of Israel prior to 70 AD when Titus and Vespasian crushed a revolt there.
The ancestors of these folks that today practice Islam in Palestine likely converted to Islam sometime after 637 AD when Arabs started to settle in Palestine.
It's pretty commonly accepted all over the world since basically forever that ownership is bequeathed from parents to children. This means that those who are Islamic today but whose genetic ancestors practiced Judaism in the past and lived in the historical kingdom of Israel have far greater claim to the land than folks who have no genetic ancestry to the Kingdom of Israel and instead have ancestry with no genetic relationship that converted to Judaism about 1105 to 1285 years ago.
[1] https://www.timesofisrael.com/ashkenazi-jews-descend-from-35...
Countries were established and fought for in blood all thorough history, and the winners kept their land. End of story.
Unless we are talking about some remote village, every single country was funded on blood and violence, and after a certain point it just makes no sense to track it.
> The Arabs invite all the nations around them to attack the Jews with them.
I assume you're talking about the "Arab Invasion" of 1948? So, that would be after the Nakba started. In fact, Deir Yassin occured only a month before Israel was founded.
You're very obviously leaving out facts not in an attempt to be succinct but to obscure the actual history.
It's simply the most complex sociopolitical issue on Earth today, if not ever in human history, it can't be "summed up" in some hot take.