I can describe myself in the same way as you, and yet, if I lived in a country where ownership is allowed, I'd always vote to keep it so, even without having the intention of owning a weapon myself, because otherwise the balance of power shifts too much in the favour of the State/ruling class.
I disagree with the sibling comments about defending the country against an invader (if your country is facing invasion, weapons will be readily available) and defending yourself against crime (it's a non-issue in any non-failed state, and in a failed state weapons are readily available anyway and rarely make any difference).
But in a world where wealth inequality is increasing, where surveillance is ever more present, the tiny probability of the population being able to resist when it finally rises up justifies the very tangible downsides of an armed population.
I am aware that there are many arguments against this view, but I think the downsides of an authoritarian state with a monopoly on violence are too dire to be brushed aside.
This is the first use case for firearms I can understand. I hate it, I hate even that we have to have this discussion in a so-called civilized world, but here we are, and I understand it.
Except the people with guns are often aligned with regressive/authoritarian regimes. Which makes the problem much worse.
Is there any country where guns are politically neutral? Switzerland, maybe? Certainly not the US.