“Did you unlock and open the door, and why did you not have access to a gun?”
Yes, my husband opened the door. The neighbor was pounding on it and screaming incoherently. We thought he was having some sort of emergency. We never dreamed he would attack us for any reason.
We did not have access to a gun because we did not own a gun. This was not for any anti-gun sentiment. It was similar to the first couple years of our married lives, when we did not have a smoke detector. It may be hard to believe, but it did not occur to us that we might need one.
We have plenty now. This particular incident caused us to arm up considerably.
That sentiment is in contradiction with your previous explanation that you suspected the use of a gun to defend yourselves might have caused you more trouble than it was worth. You don't seem to have a consistent rationale about that.