Does Les say these deaths were in the thousands or in the millions?
The deaths are described as numbering in the millions, not thousands. Three examples are given—World War II, Communist Russia, and the Dark Ages martyrs—each cited as fifty million. The point is that these are millions of people who lost their lives.
Les explains that when considering the deaths from World War II, the seventy years of Communist rule in Russia, and the martyrs of the Dark Ages, the numbers are not in the thousands but in the millions. He cites fifty million for each instance. He stresses that these lives were lost at the discretion of people who could have controlled it. He connects this to the broader theme of judgment at Christ's Second Coming and Satan as the god of this world.