It's possible, along with the crushing poll numbers coming out here in the US.
Remember all those people like Brianna Wu being like ohhhh Biden is smol uwu can't control Israel he's putting everything into trying to stop it then a story like this comes out after one half-hour phone call:
It was during that same meeting that the Netanyahu war cabinet approved the new aid routes, indicating that the hardline and more nationalist elements of the government were forced to accept them.
https://www.cbc.ca/news/world/biden-israel-ultimatum-gaza-1.7164251
Like skull boy said, he could end this slaughter with literally a single phone call then woke up and chose not to do so for nearly 200 straight days.