Major points of Anti-Federalism:
They believed the Constitution needed a Bill of Rights.
They believed the Constitution created a presidency too powerful that would become a monarch.
They believed the Constitution did too little in regard to the courts and would create an out of control judiciary.
They believed that the national government would be too far away from the people and thus unresponsive to the needs of localities.
https://en.wikipedia.org/wiki/Anti-Federalism
Legacy
The Anti-Federalists proved unable to stop the ratification of the US Constitution, which took effect in 1789. Since then, the essays they wrote have largely fallen into obscurity. Unlike, for example, The Federalist No. 10 written by James Madison, none of their works are mainstays in college curricula or court rulings.[6] The influence of their writing, however, can be seen to this day – particularly in the nature and shape of the United States Bill of Rights. Federalists (such as Alexander Hamilton, in Federalist 84) vigorously argued against its passage but were in the end forced to compromise.[7] The broader legacy of the Anti-Federalist cause can be seen in the strong suspicion of centralized government held by many Americans to this day.
https://en.wikipedia.org/wiki/Anti-Federalist_Papers
The Complete Anti-Federalist Book Review
https://scholarship.law.cornell.edu/cgi/viewcontent.cgi?referer=&httpsredir=1&article=4376&context=clr