Because the most hawkish are
a) neocons who benefit from war profiteering
b) they see a way to throw Dementia Joe to the wolves over the Ukraine to cover up their pork trough dealings there, but saw no way to extricate themselves from Epstein-like activities which (hypothetically) might've been on the laptop.
Actually, I see Joe and his crime family and other swamp dwellers using the war as an opportunity by sending in our troops so to take the press’s attention off the document problem.
Joe and his handlers will subscribe to their favorite axiom; “never let a crisis go to waste”.