If you're crazy, then count me in, too. Whenever I point out to people what you stated:
I get the usual response, something like, "oh, come on! The Army has tanks, and Apaches, and blah, blah, blah... What good is your rifle/pistol going to do?" Again, one must point to history, which, sadly, few people have any knowledge of. I ask them how the Soviets, arguably one of the best-equipped, most powerful armies in the world at the time, after 10 years of fighting in Afghanistan got sent home in body bags. Other than America sending the Afghanis stinger missles and various small arms, most of their army was equipped with WWII era or older rifles. They had no armor, no aircraft, and no artillery, and they sent the red menace packing.
If this analogous situation leaves them scratching their heads, I dumb it down to a conclusion I drew back in high school:
Q: What do those in power (politicians) fear most?
A: Bad publicity.
Q: Why do they fear bad publicity?
A: Because it will make them unpopular with the people.
Q: Why do they fear being unpopular?
A: Because they will lose their jobs by being voted out of office.
Q: Why don't those in power just say (a la Bill Maher) "New Rules!" and use the military to stay in power indefinitely?
A: Because they would lose and they know it.
On the day-to-day domestic side of things, I see owning firearms as not just a right, but a civic responsibility. Despite what anti-gun lobbyists tell you, cops do not swoop in like Superman and stop crime, they mostly arrive after the fact and clean up. Not a dig on cops, but you can't expect so few to be everywhere at once, and criminals take great pains not to commit crimes in front of them.
I also love the fantasy-land notions that people seem to have about their neighborhood/municipality being a "safe" place because no major crime has occured there in recent memory. They act as though there is some "good guys only" force field surrounding their town that rebuffs people with bad intentions. Then when a major robbery or shooting goes down, they have this hurt look of betrayal and pout, "this used to be such a nice, safe place..." Face front, dumbass; your town was never "safe", nor is it any less "nice" because (an) individual(s) decided to commit a crime there. It was always only a matter of time, but I guess one mustn't underestimate the power of denial.