Retiring President Biden hit the shops on Black Friday and surprised onlookers by picking up a copy of a book describing the establishment of Israel as “colonialism” that’s been met with Palestinian “resistance” — an acquisition its author bemoaned was “4 years too late.”

Biden, 82, left Nantucket Bookworks holding in full view of the press a copy of “The Hundred Years’ War on Palestine: A History of Settler Colonial Conquest and Resistance, 1917-2017” by Columbia University professor emeritus Rashid Khalidi.

The book argues that “the modern history of Palestine can best be understood in these terms: as a colonial war waged against the indigenous population, by a variety of parties, to force them to relinquish their homeland to another people against their will.”