ANNALS OF LEFTIST AUTOPHAGY: Thousands of pro-Palestinian marchers descend upon WH chanting ‘Allahu akbar,’ ‘F–k Joe Biden’ as they demand ceasefire.

Tens of thousands of pro-Palestinian protesters massed in Washington, DC, Saturday afternoon before descending upon the White House to chant, “Allahu akbar” and “F–k Joe Biden” as they accused the president of genocide and demanded a ceasefire in the Gaza Strip.

“From the river to the sea, Palestine will be free,” the crowd dotted with Palestinian flags and signs cried at the start of the event, which drew attendees from across the country.

The chant – which is growing increasingly popular in the wake of Hamas’ deadly incursion into southern Israel last month and Israel’s subsequent retaliatory attacks on Gaza – is widely considered antisemitic because it implies the elimination of the State of Israel and its people.

Others chanted, “Long live the Intifada,” an Arabic word used to refer to Palestinian uprising, specifically to conflicts that ran from 1987 and 1993 and from 2000 to about 2005 that left thousands dead.

Unofficial reports estimate 300,000 showed up to the protest, but DC Police could not confirm, telling The Post it does not estimate crowd size.

This seems awfully insurrection-y: