The Antifederalists opposed the Constitution because they thought it

The antifederalists opposed the constitution because their leading argument, however, centered on the constitutions lack of protection for individual rights.

or you can say Because they thought that it would change the way the nation is.To make it more different.(you knew that they were wealthy)

would create a powerful central government and threaten individual liberties. They argued that the Constitution did not include a Bill of Rights, and they feared that without explicit protections for individual freedoms, the government would be able to abuse its power.

To understand why the Antifederalists opposed the Constitution, it is necessary to study the historical context surrounding its creation. The Constitution was drafted in 1787 during the Philadelphia Convention, as a proposed replacement for the Articles of Confederation. The Founding Fathers who supported the Constitution, known as the Federalists, believed that a stronger central government was necessary to address the weaknesses of the Articles of Confederation.

However, the Antifederalists were concerned that this new central government would become too powerful and encroach upon the rights of individuals and states. They feared that without specific protections outlined in a Bill of Rights, the government would be able to infringe upon individual liberties, just as the British monarchy had done prior to the American Revolution.

To get a deeper understanding of the Antifederalist perspective, one can study their essays that were published during the ratification debates of the Constitution. Notable essays include the "Brutus" series authored by Robert Yates and the "Federal Farmer" letters by Richard Henry Lee. These essays provide detailed arguments against the Constitution, highlighting concerns about the concentration of power and the lack of explicit protections for individual rights.

In summary, the Antifederalists opposed the Constitution because they believed it would create a powerful central government that could potentially threaten individual liberties. Understanding their concerns requires studying the historical context and reading the essays they published during the ratification debates.