Well, it's because I like guns. Firearms are an amazing hobby. It teaches responsibility, maintenance of a fragile and precision machine, puts you in control of your personal safety, and can put dinner on your plate if you're ever up for a bit of hunting. I subscribe to a very Locke-esq philosophy of life. Where some group begins by regulating one freedom I enjoy, they will not simply stop. All governments will slowly etch away at freedoms that people have in the aim of securing more control over it's citizens (furthering the divide between the peasants and the ruling class). Firearms rights are a very good litmus test for my case since it quickly points to, in my opinion, if the population has given up their own rights to protect themselves and is ready to pack up their freedoms and hand them over to their ruling class.
In my personal opinion, an unarmed populous is a completely ruled populous since the people have given up all hope of being in control of their own safety and government's actions. They do this not even for safety but for the illusion of such.
I'd like to reverse the question to you. Rather then as "Why is that a problem instead of a perk" in relation to owning firearms, let me ask this about banning fire arms.
The facts simply don't align with the assessment that banning fire arms will positively effect anyone. Firearms ownership simply does not correlate to crime.
I'll agree that it does correlate with firearm related deaths since that is plainly evident in the data but those deaths are replaced with other means when firearms are taken out of the equation.
There are very few recent studies about this on a federal level. This is largely due to the CDC being prohibited from researching firearms related topics.
The 'best' source I have found was a source from '07. [0]
An "ok" secondary "check" for this, that is by all accounts not a very good measure, is by looking at some charts wikipedia has made [1] [2]. If you go to those two pages you will see that the places with the most fire arms are seldom the most dangerous places. Now, if you change your comparison from Guns vs Intentional Homicide to % People Living Below Poverty Line vs Intentional Homicides you will see something interesting [3]. Once you have >10-20% of the people living below poverty there is a huge increase in homicides. I think if this is studied further that you will find that firearms are a single means to some crimes, not the only mean and that crime correlates to poverty, not firearms ownership.
Personally, I don't want my rights to be taken away "just because;" I want a reason for rights being revoked. The plain fact of the matter is that there does not seem to be any reason to revoke the right of firearms ownership.
[0] - http://www.sciencedirect.com/science/article/pii/S0047235214... [1] - https://en.wikipedia.org/wiki/Number_of_guns_per_capita_by_c... [2] - https://en.wikipedia.org/wiki/List_of_countries_by_intention... [3] - https://en.wikipedia.org/wiki/List_of_countries_by_percentag...