I follow a retired American lawyer, who has quite a different view, which makes more sense to me.
He presents it in many detailed pods, including regarding what #[2] asks, and describes quite well that the US constitution was deeply flawed from the beginning, and was shown to be completely unworkable and ineffective by their secession war, and many times since:
The Quash: The Arts of Confederation worked. That's why they HAD TO GO.
Episode webpage: https://the-quash.captivate.fm/episode/the-arts-of-confederation-worked-thats-why-they-had-to-go
Media file: https://podcasts.captivate.fm/media/fd185298-b79c-437d-a0d0-9450cf43d633/s2-ep46-ad-art-conf-vs-const.mp3
The Quash: Lincoln DESTROYED the constitution. Period.
Episode webpage: https://the-quash.captivate.fm/episode/lincoln-destroyed-the-constitution-period