The States amended the Constitution with those 12 amendments. Only the States have the authority to interpret the Constitution. Only the States can amend the Constitution. Only the States own the Constitution.
I am not stating anything that is different than what is written there. YOU are. Inversion fallacy.
The states ratified 10 of those amendments (eventually 11) only after Congress proposed them.
If states could amend the Constitution alone they would not have needed to make the deal to add those amendments before they would ratify the Constitution because they could have added them at any later date. You are adding powers to the Constitution that do not exist.
