Just look at the comment above you talking about the Japanese Admiral. It's not made up.
And yet the Japanese attacked anyway, the armed citizenry wasn't a deterrent.
My whole point is the risk/reward question. The likelihood of an attack defeating the US military and requiring an armed population to repel it versus the risk of 10,000 gun related deaths annually should such an event not occur.
Obviously, you believe that ongoing risk to be worth the potential reward. I do not.