MAGA will cheer, drowning out the anti-war right (those will probably adapt too)
The Media will be ecstatic.
The liberals will cheer.
Crisis nationalism will thrive
The Socdems will be unhappy, but about half will go "well, if it's about stopping WMDs and supporting democracy then fiiiiine."
The left will openly support Iran and be considered enemy #1
Hitlerites supporting doing the same to uncivilized Muslims spreading antisemitism in the west will thrive.