Earlier quoted context omitted.
The Constitution doesn't say who they're held by; the only reference to "right" in there is actually a place that calls out my error: it does grant one right, which is copyright/patent. Oddly. A document that might indicate who rights were considered to be held by is the Declaration of Independence, but it says "all men", which I would take to mean every human. Obviously not all the signers viewed it that way, given…
The Declaration of Independence has no legal significance. It is just a letter, and the prose is intended to be poetic (to justify violent revolution) rather than functional. Your comment about the U.S. not existing shows a misunderstanding of the nature of the Constitution. The Constitution is essentially a contract outlining the delegation of powers to the federal government from the sovereign state governments. Th…
No disagreement there; I only brought it up as something that "might indicate" what the framers were thinking when they failed to grant any rights in the Constitution.
On the rest, I'm no constitutional scholar; you may well be right on how this was viewed then.