The 2013 short story "An Uncivil War in America" by Thaddeus Howze describes the aftermath of a race war in the USA. It reads as pretty close to present day, but is there any indication when it is set? Either in the story that I may have missed, or perhaps as a comment by the author.
It certainly does not seem clear from the story itself.
In one online location of the story, here, there is a blurb at the beginning which appears to be from the author. On Thaddeus Howze's profile here, he has links with the "Ebon Storm" username (thank you to AncientSwordRage and TheLethalCarrot for this information):
In an America not too unlike our own, racial tensions explode into unprecedented and terrifying violence.
The phrase "an America not too unlike our own" sounds as though this is meant to be alternate history.