I thought the point of their post was that no society, civilisation, "race" - whatever little circle could be drawn around a group - is special, by providing an

I thought the point of their post was that no society, civilisation, "race" - whatever little circle could be drawn around a group - is special, by providing an obvious counter to the "white people are inherently bad" nonsense going on the US, so I'm not sure what you're attempting to refute.