Why can’t every country get along with each other? It comes down to resources, inequality and perception

Even countries with similar values and goals can end up in conflict with each other due to forces they cannot fully control.
UNAIDS

Report: inequality is making pandemics more likely, more deadly and more costly

High levels of inequality, within and between countries, are making the world more vulnerable to pandemics, making pandemics more economically disruptive and deadly, and making them last longer; ...
Pew Research Center

Dual income, no kids: What we know about ‘DINKs’ in the U.S.

In the United States, 12% of married couples with at least one spouse in their 30s or 40s have two incomes and no kids.