The UN is the only international democratic institution that - even with its many imperfections - prevents the world to fall into complete anarchy. It's quite telling that it gets ignored since so many years by the country that elevates itself as the world defender of democracy, the US.
The UN has voted for decades for ending the embargo towards Cuba. Every year the outcome of the vote, which has always resulted in a great majority demanding the immediate end of the embargo, has been ignored by the US, resulting in millions of Cubans facing extreme economic consequences since many decades. The last time every country except Israel and US voted for ending the embargo (I might be wrong, maybe a single African state abstained).
In all of this, the only seed of joy I see, was seeing the Cubans a couple of years ago, after decades and decades of seeing their economy strangled by the most powerful country on Earth, roll out their own Covid vaccine just at the same time of those of big Pharma - a vaccine that resulted excellent, effective, and cheap. Hats off for the Cubans. Hope to see some other seed like this also in the Palestinians.