Community, in whatever form that is. And community has broken down in the US, and has been for decades. It is a social system, lumbering towards failure (as many systems are).

Pew Research: Americans are less likely than others around the world to feel close to people in their country or community - https://www.pewresearch.org/short-reads/2024/05/08/americans... - May 8th, 2024

> Differences by religion also emerge. Religiously unaffiliated Americans are much less likely than those who are religiously affiliated to feel connected to others in their local community (43% vs. 60%). This pattern aligns with previous research on interpersonal connectedness and philanthropy among religious people. Religious people tend to be more likely than nonreligious people to volunteer and give to charity – though they prefer these activities benefit others within their own religious groups. [My note: Religion->Shared belief tribalism, observation, not intended to be derogatory]

Pew Research: Connectedness to community, country and the world - https://www.pewresearch.org/global/2023/12/06/connectedness-... - December 6th, 2023

https://en.wikipedia.org/wiki/Bowling_Alone

> Bowling Alone: The Collapse and Revival of American Community is a 2000 nonfiction book by Robert D. Putnam. It was developed from his 1995 essay entitled "Bowling Alone: America's Declining Social Capital" in the Journal of Democracy. Putnam surveys the decline of social capital in the United States since 1950. He has described the reduction in all the forms of in-person social intercourse upon which Americans used to found, educate, and enrich the fabric of their social lives. He argues that this undermines the active civic engagement which a strong democracy requires from its citizens.

https://en.wikipedia.org/wiki/Social_capital