what was the major purpose of the 14th amendment
Answered by The Community. Making the world better, one answer at a time. The main purpose of the 14th Amendment was to secure the rights of the former slaves. The purpose of the amendment provided a broad definition of citizenship.he 14th amendment is called the rights of citizens. It protects the rights for the free black slaves. It's called the civil rights act of 1964.   It defines who is a citizen of the US. The 14th amendment states that states must provide equal protection to all people. It also defines what citizenship is.