> The security council was built around the nuclear powers at the time. That's not actually true, the 5 permanent seats on the UNSC were granted in 1945, well

> The security council was built around the nuclear powers at the time. That's not actually true, the 5 permanent seats on the UNSC were granted in 1945, well before any country aside from the US managed to develop nuclear weapons. Those 5 countries did all eventually develop nuclear weapons and became nuclear weapon states under the NPT but that happened quite a bit later.