That was a very detailed article; must have taken months to put together. The crux of the article for me were the actual quotes by southern leaders in several states stating that the civil war was all about slavery and superiority over the "negro slave." That in itself is enough to peacefully remove those icons from government spaces.
"We hold as undeniable truths that the governments of the various States, and of the confederacy itself, were established exclusively by the white race, for themselves and their posterity; that the African race had no agency in their establishment; that they were rightfully held and regarded as an inferior and dependent race, and in that condition only could their existence in this country be rendered beneficial or tolerable.”
Texas Declaration of causes for secession, February 2, 1861
“Our position is thoroughly identified with the institution of slavery — the greatest material interest of the world.”
Mississippi Declaration of causes for secession
“They assume that the negro is equal, and hence conclude that he is entitled to equal privileges and rights with the white man. If their premises were correct, their conclusions would be logical and just but their premise being wrong, their whole argument fails.”
Alexander H. Stephens, Vice President of the Confederacy
Cornerstone Speech, March 21, 1861
“Our new government is founded upon … the great truth that the negro is not equal to the white man; that slavery subordination to the superior race is his natural and normal condition.”
Alexander H. Stephens, Vice President of the Confederacy
Cornerstone Speech, March 21, 1861
“A geographical line has been drawn across the Union, and all the States north of that line have united in the election of a man to the high office of President of the United States, whose opinions and purposes are hostile to slavery.”
South Carolina Declaration of causes for secession,
December 24, 1860
"We hold as undeniable truths that the governments of the various States, and of the confederacy itself, were established exclusively by the white race, for themselves and their posterity; that the African race had no agency in their establishment; that they were rightfully held and regarded as an inferior and dependent race, and in that condition only could their existence in this country be rendered beneficial or tolerable.”
Texas Declaration of causes for secession, February 2, 1861
“Our position is thoroughly identified with the institution of slavery — the greatest material interest of the world.”
Mississippi Declaration of causes for secession
“They assume that the negro is equal, and hence conclude that he is entitled to equal privileges and rights with the white man. If their premises were correct, their conclusions would be logical and just but their premise being wrong, their whole argument fails.”
Alexander H. Stephens, Vice President of the Confederacy Cornerstone Speech, March 21, 1861
“Our new government is founded upon … the great truth that the negro is not equal to the white man; that slavery subordination to the superior race is his natural and normal condition.”
Alexander H. Stephens, Vice President of the Confederacy Cornerstone Speech, March 21, 1861
“A geographical line has been drawn across the Union, and all the States north of that line have united in the election of a man to the high office of President of the United States, whose opinions and purposes are hostile to slavery.”
South Carolina Declaration of causes for secession, December 24, 1860