Rand Paul was sand bagged on the Civil Rights Act of 1964 and gave a very bad explanation and then followed that up with more explanations. Bad PR.
These articles by Laurence Vance on Lew Rockwell and Larry Elder and John Stossel are good articles on how to respond to the reasons why the Civil Rights Act should be repealed. There are also ways how non-governmental action by private parties can change the situation.
This is another article by Larry Elder on how to respond to questions on the Civil Rights Act of 1964.
This is John Stossel telling how to respond to the uninformed.