What did anti-federalists fear would happen if the constitution became law?

The Anti-Federalists feared that if the Constitution became law then the federal government would become far too powerful over the states, and would become tyrannical. 

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .