You know how that guy took that video of himself asking anti-abortion protestors, "if abortion is murder, then shouldn't we put women who procure abortions on trial for murder?" and they all just short-circuited, like they'd never even thought of the question before? And how Trump stepped in it when he suggested that women who procure abortions should be punished?

The "ok, so exactly when do you plan on using that thing, and with what group (because we all know you're not going to fight tyranny by yourself)?" questions are sort of like that, but for pro-gun people. They either haven't really thought it through that far, or they're not willing to talk about it, or both.

FWIW, I think many gun rights people have the same delusion about guns as anti-gun people, and that's this: a gun in the hands of an individual is a thing of immense, Godlike power for mass destruction. The pro-gun people are all <boromir>We can use this power for good</boromir>, and the anti-gun people are all <gandalf>drop that ring!</gandalf>.

But where they both go wrong is at the heart of what you've pointed out: guns are an effective political force only when wielded by organized groups towards a specific set of goals. Everyone just having a gun in their closet is about as effective as everyone just going out and voting (without having a party or a plan). You can do that and feel like you've got some power, but you're not actually changing anything or threatening the status quo. It's just a political fantasy that you're buying into.