Confederate soldiers, sailors, and Marines that fought in the Civil war were made U.S. Veterans by an act of Congress in in 1957, U.S. Public Law 85-425, Sec 410, Approved 23 May, 1958. This made all Confederate Army/ Navy/ Marine Veterans equal to U.S. Veterans. Additionally, under U.S. Public Law 810, Approved by the 17th Congress on 26 Feb 1929 the War Department was directed to erect headstones and recognize Confederate grave sites as U.S. War dead grave sites. Just for the record the last Confederate veteran died in 1958. When you remove a Confederate statue, monument or headstone, you are in fact, removing a statue, monument or head stone of a U.S. VETERAN.
18 U.S. Code § 1369 – Destruction of veterans’ memorials (a) Whoever, in a circumstance described in subsection (b), willfully injures or destroys, or attempts to injure or destroy, any structure, plaque, statue, or other monument on public property commemorating the service of any person or persons in the armed forces of the United States shall be fined under this title, imprisoned not more than 10 years, or both. (b) A circumstance described in this subsection is that— (1) in committing the offense described in subsection (a), the defendant travels or causes another to travel in interstate or foreign commerce, or uses the mail or an instrumentality of interstate or foreign commerce; or (2) the structure, plaque, statue, or other monument described in subsection (a) is located on property owned by, or under the jurisdiction of, the Federal Government.