Here are some more historically accurate and appropriate terms to use:
* Confederate States of America: This was the official name of the 11 states that seceded from the Union and fought to preserve slavery.
* The South: This is a general term referring to the region of the United States that seceded.
* Southern States: This is another general term referring to the states that seceded.
* The Confederacy: This is a shortened term for the Confederate States of America.
It's also important to remember that people living in the Confederacy were diverse and held a range of views on slavery and secession. While some supported the cause of the Confederacy, others opposed it and fought for the Union.
Using more nuanced language helps to avoid oversimplification and accurately reflects the complexities of the historical period.