Disagree. Anybody who barricades themselves in with their firearms is looking for martyrdom. A few Martyrs are always useful to the cause, but those weapons eventually come out when targets of opportunity present.
I’m not talking about using them only when they come to “your door”.
I’m talking about the need to use them when the start the confiscations, on your terms. Because yes, waiting until you are alone and surrounde is a bad idea.