What problems did the anti federalist predict would happen if the federalists got their way?

Anti-Federalists predicted that if the Federalists succeeded in establishing a strong central government, it would lead to the erosion of individual liberties and states' rights. They feared the concentration of power would result in a tyrannical government, similar to the British monarchy they had fought against. Additionally, they were concerned that a large republic would be unresponsive to the needs of local populations, undermining democratic principles. Overall, they believed that the proposed Constitution lacked sufficient safeguards for personal freedoms and decentralization of authority.