'should' always sounds like a dirty word to me.
we will all fail and succeed in varying amounts. I can guarantee your failure in isolation.
if there existed fail-proof strategies of safety, civilization would have adopted them long ago....
civilization didn't form to oppress more and more people in different, more cruel ways, it simply doesn't care to what ends it secures the safety of those nearer and nearer the top of the pyramid scheme.
I think prudence calls for ways to avoid threatening the safety of the pyramid scheme.
Prudence may call you to organize your land into a CSA, or to have other appearances or actualities of social benefit.
Remember, 'the man' doesn't exist to fuck you, but he will if it makes him feel safe.
You are in the collapse now, are you being threatened?
Why do you anticipate 'crazy marauders'?
Do you have something that will make 'them' feel safe?
Perhaps, if you were a source of safety in your community, together you will all have a reason to defend each other, thus ensuring your personal safety through providing safety to others.
Or, I guess you can set motorcycle traps? Build Mad Max walls of pain?
What are you interested in talking about?
Perhaps, not being cynical about the transformative power of community food?
First you must experience it. Then you must recreate it. Then you must sustain it. The experience will give you courage to move forward. The recreation will give you the knowledge lost as a born consumer, and sustaining the transformative power of food means sharing it with others so they too may have the courage to join you.