Riiighht like the Japanese were going to invade the U.S. to begin with
The Selective Service mattered little in World War II honestly - despite drafting hundreds of thousands what counted the most was the fact that the entire country was behind the war because it was just (they fucked with us first attitude).
Guess what, 12 million Americans joined the Armed Forces to make the largest force ever.
Great exaggeration I must admit though