Not exactly accurate as written, but I acknowledge the underlying truth. The stars and bars had never been a part of SC's State flag. In 2015, there was one Stars & Bars flag permitted on state property. That flag was located at the State Capitol building - which (perhaps interestingly) is the only state capitol that also has visible damage left by Union artillery.
I do not think the stars and bars ever flew over the state capitol until the 1950s/1960s as a response to pressures on the state to repeal Jim Crowe and segregation. Personally, I always thought it should have been placed on a portion of the capitol grounds along with a statue of MLK with a "we shall overcome" inscription.
You may not have meant to imply that it was a part of the state flag, just that it was a symbol tolerated/espoused by the state. My point (if I have one in this ramble) is that it, like most Southern State flags incorporating the battle flag, was not a historical symbol of the Civil War - it was a symbol of anti-civil rights. Hate not Heritage. By contrast, the Mississippi state flag was adopted in 1894
FWIW
If the state symbol insults a significant portion of the state's citizens, get rid of it. There goes NCAA baseball tourneys if not.