Ask any "Palestinian" who they are descended from, most draw a blank.
If they give any answer, its an obscure "canaanites". Ok, fair enough.

Google sez: The Canaanites were the indigenous people of the ancient
Levant (modern Israel, Palestine, Transjordan, Lebanon and coastal
Syria). They spoke a Semitic language related to Hebrew.

So who were the leaders of these ancient people ? Umm, I don't know.
How far do you trace your history to this region ?
Finally, a question they can answer ! 1,000's of years, lot and lots of
years, back into ancient times !
Ok, fair enough, so did this ancient kingdom have a capital !
They can't believe it, 2 questions in a row that they can answer !
Jerusalem ! Yes, thats it, Jerusalem !
Ok, so you had a capital - Who was the king of this kingdom with the
capital of Jerusalem, what great leaders did you have in ancient times ?

Ooops hmm, never thought about that, well I don't know their names.
Did this great Kingdom of Palestine have a flag ? Ooops no, I mean yeah,
I mean, I'm not sure.
Did it have currency, like all other kingdoms ?
Umm, no, I mean maybe, I mean, not sure.

And on and on it goes.
The only leader they can name is Yasser Arafat,anything before that,
they draw a blank, literally.
Could it be because there weren't any ??
Do they think of what this means for their claims to be masters from the
river to the sea ?
Apparently, old Yassar did a great job convincing them that they once
had a country.

In fairness, jews would likely stumble over the same questions, and
before 1948 would simply point to biblical times for their history in
the region.

Palestinians: When was Palestine established?

https://www.youtube.com/watch?v=YHROSSEMzmY

--
Woe to those who call evil good and good evil, who put darkness for
light and light for darkness, who put bitter for sweet and sweet for bitter.