Final answer:
Anti-Federalists attacked the proposed Constitution for its lack of individual protections, fearing it would centralize power and threaten liberties without a bill of rights.
Step-by-step explanation:
The Anti-Federalists opposed the proposed Constitution on several grounds, particularly criticizing it for the centralization of power it appeared to create, which they feared would threaten individual liberties and state sovereignty. A primary concern was that the Constitution lacked a bill of rights, which was viewed as essential for protecting citizens from government tyranny. Anti-Federalists were also worried that the new system of representation wouldn't be sufficient for a growing nation, and they criticized the Constitutional Convention for its secrecy and the ratification process for its procedural irregularities. The Anti-Federalists, who were more locally oriented and favored strong state governments and a weak national government, were concerned that the Legislative and Executive branches had too much unchecked power, which could lead to a dictatorship.