The real resentment in  the South did not come from the civil war itself or the freeing of the slaves but rather from the Reconstruction period that followed.

Reconstruction policies were debated in the North when the war began, and commenced in earnest after the Emancipation Proclamation, issued on January 1, 1863. Reconstruction policies were implemented when a Confederate state came under the control of the Union Army. President Abraham Lincoln set up reconstructed governments in several southern states during the war, including Tennessee, Arkansas and Louisiana. He experimented with giving land to ex-slaves in South Carolina. Following Lincoln's assassination, president Andrew Johnson tried to follow Lincoln's lenient policies and appointed new governors in the summer of 1865. Johnson quickly declared that the war goals of national unity and the ending of slavery had been achieved, so that reconstruction was completed. Republicans in Congress refused to accept Johnson's terms, rejected the new members of Congress elected by the South, and in 1865-66 broke with the president. A sweeping Republican victory in the 1866 Congressional elections in the North gave the Radical Republicans enough control of Congress that they over-rode Johnson's vetoes and began what is called "Radical reconstruction" in 1867.^[2]Congress removed the civilian governments in the South^[3] in 1867 and put the former Confederacy under the rule of the U.S. Army. The army conducted new elections in which the freed slaves could vote, while those who held leading positions under the Confederacy were temporarily denied the vote and could not run for office.

In ten states,^[4] coalitions of freedmen, recent black and white arrivals from the North (carpetbaggers), and white Southerners who supported Reconstruction (scalawags) cooperated to form Republican biracial state governments. They introduced various reconstruction programs, including the founding of public schools in most states for the first time, and the establishment of charitable institutions. They raised taxes, which historically had been low as planters preferred to make private investments for their own purposes; offered massive aid to support railroads to improve transportation and shipping. Conservative opponents charged that Republican regimes were marred by widespread corruption. Violent opposition towards freedmen and whites who supported Reconstruction emerged in numerous localities under the name of the Ku Klux Klan, a secret vigilante organization, which led to federal intervention by President Ulysses S. Grant in 1871 that closed down the Klan. Conservative white Democrats calling themselves "Redeemers" regained control state by state, sometimes using fraud and violence to control state elections. A deep national economic depression following the Panic of 1873 led to major Democratic gains in the North, the collapse of many railroad schemes in the South, and a growing sense of frustration in the North.

The end of Reconstruction was a staggered process, and the period of Republican control ended at different times in different states. With the Compromise of 1877, Army intervention in the South ceased and Republican control collapsed in the last three state governments in the South. This was followed by a period that white Southerners labeled Redemption, in which white-dominated state legislatures enacted Jim Crow laws and (after 1890) the disfranchised most blacks and many poor whites through a combination of constitutional amendments and electoral laws. The white Southerners' memory of Reconstruction played a major role in imposing the system of white supremacy and second-class citizenship for blacks, known as the age of Jim Crow.^[5]The Democratic Party monopolized the "New South" into the 1960s, when the civil rights and voting rights of African Americans were finally protected and enforced under new federal laws passed by the US Congress.

And this my friends is where the States Rights issues and anti-government issues come from.