Atomized refers to being individual, alone, responsible for your own needs. Not a member of a community etc. Sometimes we say siloed off. It's not just about needs but also about loneliness and feeling shut out.
A non-atomized society are places like Vietnam and Cuba. In Vietnam during Covid lockdowns, they brought you fresh food to eat day to day. You can rely on your neighbours for needs. People are looking out for each other. Contrast this with the American response(s) to covid - Lockdowns but you don't get anything provisioned to you or fuck it everyone for themselves no response at all.
There's definitely communities within places like America that aren't as atomized, mutual aid societies, unions etc. But the dominant character of society in general of the United States is one of deep loneliness and atomization.
How did this make it past review? I guess case reports might not have a peer review process