a) This thread is about Sharpsburg, not other venues.

b)  Almost always the Rebels were heavily outnumbered;  this battle exemplifies the excellence of Southern leadership and Soldiers who were fighting to defend their homeland against Yank thieves, vandals, rapists, murderers, and arsonists.

c)  As you have pointed out before, there were enlightened members of the Continental Congress who found the peculiar institution to be an abhorrent aberration to an otherwise civilized government.

Most gentlemen in the late eighteenth-century believed in equality as a legal construct for white males which would optimally give them equality under the law for the protection of their life, liberty, and property.

d) As you point out here, Sharpsburg was indeed a "tragic testament" to the horrific consequences of resorting to violence as a means of settling differences.

And that's another good reason why Taliban/progressives should not be allowed to demonize art/War memorials for
political ends.