It's debatable whether this country will fight for anything. Back in the 60's, I listened to leftists proclaim that they'd fight if the country was attacked, but they wouldn't fight in Vietnam. This time, the country has been attacked, and they still won't fight. We've gone a very long way downhill since World War II.
Like the 60's, this is also partly the administration's fault for not aggressively proecuting the seditionists, traitors and leakers of classified info to the fullest extent of the law.
Jail some of them and go after their assets to recoup the costs of the betrayal and see how long rich liberals like the Sulzbergers will continue to break the law.
That's why they believe all the conspiracy theories--'cuz it would reveal them as the craven bastards they are if they admit America actually was attacked.
Quite simply: Psychological defenses are stronger than reason....