I'm confused about what the frequency and odds of being killed by gun violence has to do with whether or not something should be done about it.
it speaks to the relative danger these hypothetical gun control laws would be trying to prevent. most laws regarding public safety are tradeoffs between personal liberty and public safety. accordingly, it is impossible to rationally consider the benefit or harm of such laws without understanding both the rates of violence that might be prevented, and the magnitude of the liberties to be restricted.
the amount of innocent killed in relation to a perpetrator killed by someone defending him/herself is so out of wack I don't know how people can continue to use this as a rationalization for the widespread legalization of firearms.
i could care less about self-defense. i care about personal liberties. owning a gun wouldn't even make my top 20 of personal liberties threatened or restricted by governments, but that doesn't mean i think it should be given away. i'm also against the cowardice that permeates our culture. life is risky, it is impossible to remove all risk from our lives, and the insane pursuit of safety already causes us to be incredibly less productive, happy and wealthy than we could be. gun control again, wouldn't even be on the top 20 (prolly top 100) of a list of our hyperresponsiveness to the perception of random danger, but it's a symptom of the same disease.
To your second point, that was valid half a century ago. Now whether you are talking about the local police or a national army the weaponry that these people have are far more advanced and deadly than any weaponry a citizen protecting himself from the oppressor can have. Should we let people have tanks and bombers too? How will the Syrians use their guns when they have sarin bombs dropped on their heads? Should they get sarin too?
i think small arms are still more relevant in warfare, and certainly in civil insurrection, than you suggest, but if you are correct, that is perhaps sad, but not a reason to restrict gun ownership. yes, people should be able to have tanks and bombers. dunno about sarin.