The author's point, that denying the right to keep and bear arms to the general populace is the urge of those who think themselves better than the common man, who think that they (backed by armed men serving their interests, rather than those of the actual people, whether those armed goons are called "the King's Guard," "the People's Liberation Arm," the NYPD, or the DHS) are entitled by being better (in the old days it was called "more noble") than every one else to run everyone's lives, is sound.
Somehow, though contextualizing this as opposition to nobility, reminds me of the remark of a Russian expat, telling us to cherish the Second Amendment, "We all had weapons when we were free under the Tsars," which makes fairly clear that not all noblemen, everywhere were opposed to the ordinary people having arms.