Whatever America hopes to bring to pass in the world must first come to pass in the heart of America.
I'd like to paraphrase that for the Church.
Whatever Latter-day Saints hope to bring to pass in the world must first come to pass in the heart of the Latter-day Saints.
This applies to every aspect of establishing Zion. Because this blog focuses on the Book of Mormon, I'll narrow the quotation even more: If we expect the world to accept the divine authenticity of the Book of Mormon, we Latter-day Saints better accept its divine authenticity first.
Because I think we have to accept the prophets to establish the divine authenticity of the Book of Mormon, this means we as Latter-day Saints should all embrace the teachings of the prophets that Cumorah is in New York.
Also, because the M2C intellectuals repudiate the prophets regarding the New York Cumorah, I think M2C is impeding our efforts to take the Book of Mormon to the world.
Imagine if every member of the Church was aligned with the prophets on the Cumorah question. That would be one connection between the Book of Mormon and the actual New World that would unify our message to the world about the divine authenticity of the Book of Mormon.