If the United States haven't grown poets, on any scale of grandeur, it is certain that they import, print, and read more poetry than any equal number of people elsewhere — probably more than the rest of the world combined.
Poetry (like a grand personality) is a growth of many generations — many rare combinations.
To have great poets, there must be great audiences too.
Walt Whitman (1892). "III. Notes Left Over 3. Ventures, on an Old Theme". Complete Prose Works. Philadelphia: David McKay. p. 324.