The correct answer to this open question is the following.
By defining citizens as anyone born in the United States, this Amendment created future conflict in the following way.
We are talking about the 14th Amendment to the United States Constitution that granted citizenship to all people who born in the US territory. That was the law and was ratified in 1868, during the time of Reconstruction after the bloody Civil War.
This amendment created future conflict because the Southern states did not want to give African Americans the same civil rights as whites. They still depend so much on salves to work in the large southern plantations tp produce the kind of crops that were exported to Europe. That is how the southern states established their own legislation such as the Jim Crow laws and the black codes.