Your earlier point was that casualties from Okinawa exceeded that of all the major battles combined. That is wrong. In addition, the American dead from the Okinawa campaign were exceeded by Guadalcanal and Iwo Jima combined.
Sigh.
Exceeded all offensive operations conducted by the US at the time. No one would have been thinking about the losses at Bataan, and it would never have entered the considerations for Coronet or Olympic. Strain a gnat, swallow a camel.