SAN DIEGO NAVAL STATION, Calif. — As his ship spun into San Diego Bay on Dec. 6 to begin a deployment, Fire Controlman 3rd Class Pablo Paredes turned his back and walked through the pier gates as a crowd of families yelled “coward!” and “traitor!” The assault ship Bonhomme Richard would leave on this deployment without Paredes, a 23-year-old who refused to board the ship with the rest of the ship’s crew. “I’m sad that anyone is on there,” he said, taking a glance shortly after the ship blew its horns and pulled from its berth. Paredes had tried unsuccessfully...