Short answer: yes—but unevenly. The UN remains indispensable in some areas and weak in others, largely reflecting the willingness (or not) of powerful member states to cooperate.
Where it is clearly relevant
•Humanitarian lifeline and coordination: Agencies like WFP, UNICEF, UNHCR, WHO and OCHA deliver food, vaccinations, schooling, shelter and emergency coordination at a scale no other actor matches, especially in conflict and disaster zones.
•Global rules and norms: The UN system underpins much of modern international law and standard-setting—human rights treaties, the Paris Climate Agreement (via UNFCCC), the Law of the Sea (UNCLOS), civil aviation (ICAO), maritime safety (IMO), nuclear safeguards (IAEA), chemical weapons (OPCW cooperation), and emerging areas like cyber norms and AI principles (recent UNGA resolutions).
•Peace operations and mediation: UN missions helped stabilize or transition countries such as Liberia, Sierra Leone, Namibia, Mozambique, Côte d’Ivoire and Timor-Leste, and continue to reduce violence or contain escalation in several places. The UN also provides election support and quiet diplomacy that states often cannot do alone.
•Legitimacy and voice: The General Assembly offers global visibility and a platform for small and medium states. Its resolutions shape narratives and expectations even when they lack coercive force (e.g., broad condemnations of aggression).
Where it falls short
•Great-power politics: The Security Council is frequently paralyzed by vetoes on the gravest crises (e.g., Syria, Ukraine, Myanmar, Israel–Palestine), limiting collective security and enforcement.
•Peacekeeping design limits: Missions are often asked to do too much with too little, are not built for counterterrorism, and have had serious failures and misconduct scandals. Several missions have been downsized or closed amid deteriorating host-state consent.
•Funding fragility: Heavy reliance on voluntary, earmarked donations makes humanitarian operations and some agencies vulnerable to political swings and shortfalls.
•Bureaucracy and accountability: Slow processes and uneven performance persist, though there have been management reforms and more transparency.
Would the world be better off without it?
Probably not. No alternative offers the same combination of legitimacy, convening power, and operational reach. Without the UN system, aid would be more fragmented, standard-setting weaker, and many disputes would lack even a minimal forum. That said, for hard security problems involving major powers, expectations should be modest.
What reform would make it more relevant
•Security Council reform or veto restraint in mass-atrocity cases; fuller inclusion for Africa and rising powers.
•More predictable financing for humanitarian work and for African-led peace operations under UN frameworks.
•Stronger accountability and performance management for field missions and zero tolerance for abuse.
•Continued leadership on climate implementation, pandemic preparedness (through the UN health agencies), and digital/AI governance where global standards are still forming.
Bottom line
The UN is not a world government; it is a platform that is only as strong as its members allow. It remains highly relevant—and often irreplaceable—for humanitarian action, global norms and technical cooperation. It is least effective where great-power interests collide.