Never said there something wrong with a healthy distrust of gov, that's why you have different layers of gov in the first place (shyt, the US is a Federation so States are able to check what the Federal State does, and even more so than in other Federations -Spain, Belgium...-).
Honestly, do you really fear your govt? If so, to each his own, but WHY though? Where does that fear of your own govt come? (I'm not trolling, I really fail to understand this aspect of American culture).
On the other hand no country is plotting on invading the US anytime soon, and it has less to do with you having a gun than with the US Army having planes, submarines, A-bombs and being the most technologically advanced army in the world. Your biggest threats are terrorist attacks, and your gun isn't going to much about that.
I guess it boils down to culture, I just have a hard time understanding that someone would "like" a gun...to me it can only mean you like shooting at things...animals...people?
And if another law-abiding American feels threatened by all these arms and that good old arm-fair loophole (where basically anyone can buy a gun, no identity checks), you're telling him to move out of the country? (I'm not in the US). Why not take into account his point of view, when all these arms obviously have an impact on overall security?