He talks about what is going on right now as Trump and his lackeys stoke fear and racism during the RNC convention. He shows how the Kenosha police department was in league with the heavily armed white militia that went to Kenosha. The murderer who killed two people and injured a third was one of those people and the police just ignored him as he walked towards them, even though people were yelling that he had just killed a man.
So to sum up: an unarmed black man who has not committed any crime can be shot multiple times in the back and killed by the police as he walks away, but a heavily armed white man who has just killed someone will be ignored by the police even as he walks towards them.
This is Trump’s America.
Here is Colbert letting loose.