Ha! The First amendment is also dead; it's been dying since at least 1919 (Schenec).
(One could also argue the Alien & Sedition acts in John Adam's presidency.)
The hysteria of war is not a good time to go back to for precedents. WWI and its immediate aftermath was possibly the most hysterical period in our nation’s history.
You might also want to go back and check out how the Founders treated those who dissented from the Patriot position in the Revolution. Admittedly, this was before the Constitution and Bill of Rights.
But their treatment of Tories and those accused of being Tories shows little respect for their “rights,” which are theoretically not granted by the B of R, but only recognized.
IOW, wartime does not make for good legal precedents.