That person really doesn’t seem to know what they’re talking about (Jews did not originate in Egypt, the UN didn’t “shove” anyone to the land, Jewish settlement has been continuous in the region, and after decades of pogroms which culminated in the Holocaust, many who were in the diaspora ended up returning since they didn’t feel safe anywhere else, but more importantly, like so many fleeing war and genocide today - were simply not welcomed by the “allies”. There is also no such argument that anyone who lives on that land qualifies as Jewish, that’s not how Judaism works, there are Israelis and Palestinians of all and no religion), I recommend reading some actual sources for yourself if you want to know more:
https://en.wikipedia.org/wiki/Origins_of_Judaism
https://en.wikipedia.org/wiki/Judaism
https://en.wikipedia.org/wiki/History_of_the_Jews_and_Judaism_in_the_Land_of_Israel
https://en.wikipedia.org/wiki/Jewish_diaspora
And of course I have to defend myself in advance - despite all of the above, I am not denying that the state of Israel is occupying some lands illegally, and is oppressing and ethnically cleansing Palestine.
Both peoples have a rightful claim to parts of that land (and will, eventually, have to share other parts, or all die trying to be the only ones in control), and all deserve to live peacefully side by side on their homelands.
Oh, my criticism wasn’t of you, but of the person who replied to you with a load of nonsense. People tend to ignore/simplify/skew the history to fit their agenda (or are too lazy to make the kind of effort you are to understand), so it’s good to look at the actual documented history.
As for the Hagia Sophia comparison, I can see where you’re coming from, but this is all on a much bigger scale, which by default makes it much more complicated t figure out. But the first step is wanting to know, and you’re there, so good job!