"I don't think people need guns thus nobody needs one and should be able to get one"
But it is a legitimate argument. There are plenty of things we don't need, but we don't argue that there should be laws restricting them. But guns cause death. People owning guns isn't like owning some otherwise harmless widgets. A
need for something can balance out the negatives.
A "want" isn't as convincing as a "need", if having that thing is going to cause predictable serious harm or death to some of the users. e.g. if there was a fun toy, but it choked 10% of children to death then "but it's fun for the other 90% so you can't take it away" isn't a good argument for not banning that toy. The toy is deadly, and there are other fun things you can do that aren't going to kill a predictable proportion of kids who try and play with it. From a utilitarian point of view, the positive is
how much more fun the 90% are having playing with that toy vs any other toy they could be playing with, minus
how not fun it is choking to death for 10% of users, vs not choking to death at all. So for a toy that deadly, it would have to be the most fucking fun thing in the universe by a landslide margin, to make it worth allowing it to be sold.
Two of the "world-examples" Switzerland and Israel about gun laws fall apart on closer examination, however. Switzerland in
2007 was reported as having one of the highest per-capita gun death rates. They centralized all the militia ammo into secure armories however, and now gun deaths aren't sky-high anymore. Israel abolished the system of military recruits taking guns home on weekends, and suicide rates
nationally fell by a total of 40%. People shooting themselves on weekends with IDF-issue weapons accounted for almost half the national suicides. They took away the guns and it fell by 40% without any rise in suicides during weekdays or by other causes. Having a quick way to kill yourself did in fact contribute to the long-term suicide rate.
Those "gun success stories" touted by the NRA are actually
gun-control success stories. Yeah, I've mentioned these before but I'm going to periodically harp on them anyway, since people persist in bringing up especially Switzerland as some pro-gun utopia. It isn't anything like that, in fact it's the poster-child for having a well-trained militia, but not handing out the ammo until it's absolutely necessary.