I agree with the entrepreneurial DIYer aspect of it. But I do think sitting in front of screens all day screams for a longing for nature.
Also I think there might a counterculture aspect to it, which ties in to your reliance point. Growing your own food is one of the most subversive thing you can do. Get solar and a few other things, and you're completely self-reliant.
It allows one to take a shortcut to the fisherman life, in the fisherman and the banker story.