The columnist seems to have (or at least present) a rather narrow view of things. For instance, when talking about fixing the economy, she states, "All else—windmills, green technology, remaking health care—is secondary."
Now, to me, these seem like projects that might be able to boost the economy. New New Deal stuff.
On the subject of gun sales going up: That's not a sign of a general fear, that's a sign of fear of legislation. Considering Wall Street itself runs off of this sort of reactionary and speculative buying (and selling) binge, it's hardly surprising. Just human nature. If Steve Jobs is ill, Apple stock falls. If Democrats control the House, Senate, and Executive branch, and are likely to appoint the next Supreme Court Justice, gun stock goes up. =P