Baltimore Advertiser, 18 Mar 1788) (2) the second class was reported as comprised by "those descriptions of men who are certainly more numerous with us than in any other part of the globe. First, those men who are so wise as to discover that their ancestors and indeed all the rest of mankind were and are fools. We have a vast overproportion of these great men, who, when you tell them that from the earliest period at which mankind devoted their attention to social happiness, it has been their uniform judgment, that a government over governments cannot exist - that is two governments operating on the same individual - assume the smile of confidence, and tell you of two people travelling the same road - of a perfect and precise division of the duties of the individual." (No. 10 -- on the Preservation of Parties, Public Liberty Depends, 18 Mar 1788)

(3) it is stated that heading the third class are the "old rigid republications, who although few in number are still formidable. They are joined by the true democrats who are in general fanatics and enthusiasts and some few sensible charming madmen. But as this last class is forced to act as a residuary legatee, and receive all the trash and filth, it is in some measure disgraced and its influence weakened. In this [third] class may be counted men of the greatest mental powers and of as sublime virtue as any in America. They at present command nearly one-third of the property and above half the numbers of the United States, and in either event, they must continue...

. . . If the [proposed] government is not adopted, theirs will be the prevalent opinion." (No. 10 -- on the Preservation of Parties, Public Liberty Depends 18 Mar 1788)
The type of diversity that the Federalists and Anti-Federalists were focused on were those of human rights and the various methods used to earn a living by the diverse peoples and tradesmen, farmers, and laborers in American. Diversity required a rule by and for the people on a local level rather than mandates being issued from the federal level that really had no idea of what was needed locally or what was not needed nor indeed wanted. The Anti-Federalists were not against the U.S. Constitution, but instead they were standing clearly in representation for the smaller farmers against the ruling class of larger landholders and wealthier individuals who sought the freedom to dictate from the top down in what was originally conceived as a bottom-up approach of self-rule by and for the people of America.

References

The Anti-Federalist Papers (1788) Farmer No. 10. On the Preservation of Parties, Public Liberty Depends. 18 Mar 1788 )Baltimore Maryland Gazette. Retrieved from: http://www.barefootsworld.net/antifederalist.html

The Anti-Federalist vs. The Federalist. Polytechnic.org. (nd) *Based on the American Journey: A History of the United States by Goldfield, et al. Retrieved from: http://faculty.polytechnic.org/gfeldmeth/chart.fed.pdf