To answer the headline question, Matthews won't stop with racist accusations because this thinking is deeply embedded in his liberal worldview. He needs to be called on it, but it's unlikely to change his thinking. As far as racism-- yes it exists in this world- among people of all races. But we just elected a black President-- again-- who presides over a terrible economic recovery and has misled the American people on what happened in Libya. If this country was as racist as these folks claim, how did Obama get elected twice?