Stricter gun control that limits who gets what is something that I am interested in, but giving up all rights to own a firearm is something that I am 100% against. Most of those reasons are my own, but I can think of three arguments for the ownership of firearms among certain types of people that are pretty easy to justify:
For people who live on farms, firearms are almost a necessity. Protecting live stock from predators like wolves, coyotes, raccoon, foxes, and so on is something that you need a rifle for. Traps only work so well, and it is getting to the point where these animals have figured out ways to avoid the majority of them.
For people who live in rural areas where only one or two police officers are available for over 1,800 square miles, firearms are pretty darn close to needed. Either to protect livestock, or in case something crime related actually happened. For many people living in cities, police response is only a phone call and 5 minute wait away. For others, a phone call and a 30 or 45 or even hour long wait is the norm.
For people who count on hunting to make their lives a whole lot easier in winter (basically, seasonal workers who are laid off in winter and hunt for deer to provide food for themselves and family while they do not work - this is something that does actually happen, especially in smaller towns), firearms make their lives a lot easier vs hunting with a bow.
Now, you can read all that and call bullshit or that guns aren't needed, or that getting rid of all firearms would do more good than what it would harm the above people, but to be honest there are good reasons to own firearms beyond the typical hobby/enthusiast argument that many throw around.
Keeping deer populations in reasonable numbers does save human lives.
Even in areas that I have lived in, with avid hunting populations and hundreds of deer killed every hunting season, there are still dozens of car accidents every year involving deer. They are not smart, they do not avoid roads, and they can seriously damage a vehicle and kill somebody in many cases. Going 65mph on a highway at night with a deer sprinting out of the trees 20 feet away, up through the ditch and out onto the road not only can total a car but can also kill anybody and everybody in the vehicle if/when the deer flies up through the windshield and into the actual seating area.
Not to mention the amount of deer that break into farms and destroy gardens, costing hundreds of dollars in damage or lost revenue. That can be the difference in how the family living on a farm lives that winter. Is it going to cause somebody to actually die? No. But it is hardly something to shrug at.
Can deer effectively live in higher numbers without a large impact on human lives? Probably. But the way the system works now is more than effective in saving human lives. It could actually probably be argued somewhat effectively that deer populations could be reduced even further, but that's a debate for a whole new topic.
