Yup, the number of people in the U.S. killed every year by gun-related homicide is somewhere in the neighborhood of 11,000.
The number of self-defense uses of firearms in the U.S. is on the very lowest end estimated at about 100,000. Most estimates place it in the 800,000 range (and SOME estimates indicate there are over 2 million self-defense uses with firearms a year).
So, in the WORST case, they're used to defend oneself about 10x more than they're used to kill somebody.
Also, violent crime rate in the UK and Australia has shot up since gun confiscation, right? Both countries' violent crime rates significantly surpass the U.S. Granted, it's not as much gun-related as it is knife-related and other types of weapons, but as a law-abiding citizen and military reserve officer - I'd just as soon I be able to own my own handgun to defend myself and my loved ones in a break-in than be victimized by a violent criminal who has a higher probability of having a knife now.
Additionally, if you take out the high-density urban areas from the mix, the U.S. gun homicide rate goes down drastically (no one's surprised there, I assume). Weird, how the societal problem of gang violence is the REAL indicator of gun violence, and not the usage or ownership by law-abiding citizens.
But hey, because guns can accidentally kill people (even if it IS to a lesser degree than falls, drownings, burns, an car accidents), who cares HOW many times more people they protect every single day? What makes me feel safe is knowing that more victims at least won't have access to firearms - the REAL scourge of society.
To make an attempt at answering the question, the U.S. OVERALL actually has fairly sensible gun control laws. Since the founding concepts of liberty are still hanging on by at least a thread, in most areas, law-abiding citizens can own firearms. Instant background checks, which are required in every store purchase and the majority of gun show purchases (despite common perception), help ensure that the buyer has no former criminal activity on his or her record. It is completely illegal for a criminal or mentally incompetent person to purchase a firearm. Unfortunately, though the legal framework exists, oftentimes the justice system allows criminals who illegally purchase weapons to be released relatively leniently, allowing for more gun crime than would otherwise occur under our laws.
Some states don't have sensible gun control laws, where normal citizens have an extraordinarily difficult and burdensome time owning firearms. Some cities essentially, for all practical purposes, restrict law-abiding citizens from possessing firearms. These cities are usually indicated by their significantly higher-than-average crime rates.