I have to ask something: What are the rules in american society when it comes to getting a drivers license? Do you have to take driving lessons and make tests to show that you are capable of driving a car? And do you also have to take further lessons in order to get a license for driving trucks and so forth? How much of this is regulated at a state levels compared to governmental level?
And the argument that oppressed groups would stand a greater chance if they had guns available: no, they would still not stand a chance against a militarized government bent on oppressing some of its people.