In my not so humble opinion, you only want to help people you know who have the same value system you have and who otherwise “think like you”.
Now exactly what “think like you” means is probably different for different people, but for me it simply means that they believe in freedom, have respect for others and take personal responsibility for getting things done and not expect other people to do things for them or to give them things for free.
I have talked to several people I know about preparing for “What-If” scenarios. Some of them have said things like their survival plans are to come and stay with me.
It is probably not a good idea to arm people who are too stupid and/or too lazy to do the work to prepare.. If lazy unprepared idiots showed up at my door wanting me to provide for them and I had to tell them what I really thought of them and to get lost or else, I certainly would prefer that they be unarmed or not as well armed as they could be with my help.
People who are otherwise preparing and who live within their means are a good bet to help out if they need advice on a gun or guns, though.
I think if I were to arm my neighbors they would accidentally shoot me in the rear.
I do have a co-worker that was an MP in the service, IF it came down to a situation I might be comfortable to offering him something from my collection.
It might be better to have something around thats basically cheap and disposable if a friend or neighbor were to ask, and most of all no connections to come back to you in case it were to be something of a nasty interest down the road.
I have exactly TWO pieces that actually have records, a .44 Redhawk I had to pawn once and a Ruger .338 I bought new over the counter.
I’m not even suggesting you arm sheeple now or anytime soon. I’m suggesting you buy extra guns now in anticipation of sheeple being converted in the dire-extremes future, when guns may be unavailable. And only lending them guns even then when you are SURE of their conversion.