If home security were run by the UN
HT: Mad Latinist
In fairness to the UN, the severe limits on its powers are by design and the fact that it is an organization with severe limits is the only way a lot of nations (especially ours) are willing to participate.
Still, just as the Articles of Confederation proved inadequate to deal with the challenges facing the newly independent American colonies, I suspect the UN will prove inadequate to deal with the challenges facing the world today. But making an institution powerful enough and accountable enough to deal with problems like climate change, global pandemics, genocide, and crimes against humanity is a very difficult task. It's hard enough resolving tariff disputes. I suspect nation states and smaller entities (corporations, factions, political movements) are going to be where international power resides for quite some time.