One of the ironies of the ongoing Israeli persecution of the Palestinians is that they are also persecuting THEIR OWN PEOPLE.

Samaritan origins of Palestinian Muslims in Nablus

Much of the local Palestinian population of Nablus is believed to be descended from Samaritans who converted to Islam.[56] According to the historian Fayyad Altif, large numbers of Samaritans converted due to persecution under various Muslim rulers, and because the monotheistic nature of Islam made it easy for them to accept it.[56] The Samaritans themselves describe the Ottoman period as the worst period in their modern history, as many Samaritan families were forced to convert their religion to Islam during that time.[58] Even today, certain Nabulsi family names such as Maslamani, Yaish, and Shaksheer among others, are associated with Samaritan ancestry.

... In 1940, the future Israeli president and historian Yitzhak Ben-Zvi wrote an article in which he stated that two thirds of the residents of Nablus and the surrounding neighboring villages are of Samaritan origin.
https://en.wikipedia.org/wiki/Samari...lims_in_Nablus

Many Palestinians have Hebrew, or part Hebrew, ancestry.