Here I add a few thoughts. Within limits I believe that a written constitution could advance our interests. To us the word most commonly refers to a document, to the written constitution of a nation. But notice that the word can also refer to the structure of something.
Every organization has a structure.
Therefore every organization has a constitution, whether written or not. An actual constitution includes formal structure, the sort of thing that might be shown by an organization chart, but only to the extent that formal structure influences events. More importantly, an actual constitution includes mechanisms, ways that people in the organization work to get things done. And, as we all know, ways that people actually work in an organization often differ from ways that would be suggested by the formal structure of the organization. I believe we can use this distinction between two types of constitution, written and actual, to inform our discussion of whether it might be wise to write a constitution for a nation.