"Any infringement on the right of citizens to keep the means of self defense will tend to be expanded for the protection of the ruling elite."
Right. Give 'em an inch and they take a mile. Guard your rights with care - DON'T get complacent; speaking from experience. Ironically however, the ruling elite might actually keep gun ownership alive in my country - some of those double barrelled rifles cost the same as a new Ferrari!
First off, gun control does not apply to the elite themselves. One of the most rabid anti-gunners in this country has armed guards.
Secondly, that Ferrari-like price tag may in itself be an infringement. How much of the cost is in taxes and other government costs? Pricing the means of self defense out of the range of anyone is itself an infringement.