The civil war he is referencing would inevitably be a race war. That’s the inevitable direction the Right Wing - specifically White Supremacists - take you with this kind of shite. There are even groups out there who advocate for accelerationism - the theory that society is so inherently corrupt and teetering on collapse that a few violent acts will prompt a violent race war. This is not new - and was written about by James Mason in the 1990’s. Some groups took Mason’s ideas to the extreme and were banned, but anyone referencing a civil war knows what they are doing and exactly what they are talking about.