It's a magical religion used to rationalize whatever position a speaker wants to push. Appeal to dead revered authority's supposed intent fallacy. Instead, we should be honest, wise, cautious, aware of history, and principled about the needs and concerns now and for the future that diverged significantly due to differences in technology and geopolitics while human nature hasn't changed all that much. American politics are definitely more corrupt, less educated, less principled, and more divided than any point apart from the 1840's.

The writers of the Constitution and the people who democratically ratified their product.

The Constitution is absolutely open to change via democratic means, but in absence of that, it is the democratic product of the people.

Tell me again who could vote for this document?