Your disinformation warfare reasoning is as defective as your spelling of Belarus. The truth about tactically invented "Palestinian" lineage, according to its leaders:

The Cairo-born and educated KGB creation Yasser Arafat: "The Palestinian people have no national identity. I, Yasser Arafat, man of destiny, will give it to them through conflict with Israel."

"Half the Palestinians are Egyptian and half Saudi."--Fathi Hammad, Hamas spokesman

"The truth is Jordan is Palestine and Palestine is Jordan."--King Hussein of Jordan.

""The Palestinian people does not exist … there is no difference between Jordanians, Palestinians, Syrians, and Lebanese. Between Jordanians, Palestinians, Syrians and Lebanese there are no differences. We are all part of one people, the Arab nation [...] Just for political reasons we carefully underwrite our Palestinian identity. Because it is of national interest for the Arabs to advocate the existence of Palestinians to balance Zionism. Yes, the existence of a separate Palestinian identity exists only for tactical reasons[...] Once we have acquired all our rights in all of Palestine, we must not delay for a moment the reunification of Jordan and Palestine".--Zuheir Mohsen

"In 1948, the invasion of Israel by 6 pan-Arab armies had NOTHING to do with creating an Arab Palestinian state but ALL to do with a classic imperialist Muslim scramble for Palestinian territory. Had they succeeded, as the first secretary-general of the Arab League, Abdel Rahman Azzam, admitted to a British reporter, Transjordan “was to swallow up the central hill regions of Palestine with access to the Mediterranean at Gaza. The Egyptians would get the Negev. The Galilee would go to Syria, except that the coastal part as far as Acre would be added to Lebanon.”

Had Israel lost the war, its territory would have been divided among the invading Arab forces. The name Palestine would have vanished into the dustbin of history.

So, are the “Palestinians” an invented people for purely political (anti-semitic) purposes?

Well, even Mandate Palestinian Arab leaders during the British mandate era (1920-48) who, as products of the Ottoman imperial system where religion constituted the linchpin of the socio-political order of things, had no real grasp of the phenomenon of nationalism. Hence, they had no interest in the evolution of a distinct Palestinian nation, or acknowledging a Palestinian “people”, because there simply wasn’t one.

As an example that there was no concept of “Palestinian” nationhood or peoplehood, the April 1920 pogrom in Jerusalem was not in the name of independence of the “Palestinian people” of the Mandate area, but under the demand for its incorporation into the (short-lived) Syrian kingdom, headed by Faisal ibn Hussein of Mecca….

In 1926, the Arab Executive Committee still referred to Palestine as the unlawfully severed southern part of “the one country of Syria, with its one population of the same language, origin, customs, and religious beliefs (emphasis mine), and its natural boundaries, as I pointed out earlier.

In July 1937, the Arab Higher Committee (AHC) justified its rejection of the Peel Commission’s recommendation for the partition of Palestine on the grounds that “this country does not belong only to [the] Palestine Arabs (that qualifying noun again….) but to the whole Arab and Muslim Worlds (emphasis mine).”

And finally, as late as August 1947, three months before the passing of the U.N. resolution partitioning Mandate Palestine into Arab and Jewish states, the AHC’s mouthpiece, al-Wahda, advocated the incorporation of Palestine (and Transjordan) into “Greater Syria (emphasis mine).”

No, there was no concept of a “Palestinian people” but rather, always one of Palestinian Arabs who were part of the wider Arab Muslim ummah.

How did they then suddenly appear as homogeneous ethnic group in 1967 when not even the Arab High Commission had ever heard of them?

There are undereducated misconceptions too that pan-Arabism was of no consequence in the dialogue surrounding the authenticity of the “Palestinian” “people”. This is untrue.

Even the younger generation of post 1948 Arab activists supported this ideal as evidenced by Ahmad Shuqeiri, a Lebanon-born politician of mixed Egyptian, Hijazi, and Turkish descent who served as the Arab League’s deputy secretary-general. As he put it, “Palestine is part and parcel in the Arab homeland.”

Asked to clarify which part of the “Arab homeland” this specific territory belonged, he added that Palestine “is nothing but southern Syria.”

And so, it is no surprise that Yasser Arafat, the (Egyptian born and educated) father of the “Palestinian people” followed this pan-Arab line. The 1964 PLO charter defined the Palestinians as “an integral part of the Arab nation”, rather than a distinct nationality (emphasis mine) and vowed allegiance to the ideal of pan-Arab unity – that is, to Palestine’s eventual assimilation into “the greater Arab homeland.”

In 1996, even that bastion which proclaims itself as the leader in the “struggle” for the Palestinian “people”, Hamas, said this, “Islamic and traditional views reject the notion of establishing an independent Palestinian state … In the past, there was no independent Palestinian state. … [Hence] our main goal is to establish a great Islamic state, be it pan-Arabic or pan-Islamic… This…land…is not the property of the Palestinians…. This land is the property of all Muslims in all parts of the world.” (senior Hamas leader Mahmud Zahar, 1996)

And finally, on this line of reasoning, it is not possible to go past the words of Azmi Bishara, founding leader of the nationalist Balad Party (with seats in the Israeli parliament since 1999). In a statement he made in 2002 he said: “My Palestinian identity never precedes my Arab identity…. I don’t think there is a Palestinian nation, there is [only] an Arab nation…. “

Not much more needs to be said; the concept of a Palestinian “people” engaged in a struggle of “liberation” from a colonial Jewish “oppressor” is a purposely misleading one, invented solely for the purpose of de-legitimising the Jewish state and its people."

https://blogs.timesofisrael.com/the-invention-of-the-palestinian-people/

Find us a single letter, government document or news article from the Ottoman or mandatory eras in which an Arab refers to himself as Palestinian distinct from other Arabs. You can't, because none did. Not one. Ever.