From what I've studied, the Marines encountered a Japanese army that had their backs against the wall so to speak, and it was the first "real" exposure to the fanaticism of the Japanese soldier. They would rather be burned alive in a cave than surrender. That type of mentality is what caused so many American casualties.
The Europeans on the other, would for the most part, concede defeat and surrender, with the hope of living. The Japanese viewed life pretty much as the islamofascists of today do. They felt the need to be martyred to bring honor to their family.
As for the LA slimes, don't read it, and never will.
My $.02
Cheers!
The Marines encountered this kind of fanaticism long before Iwo Jima. For example, only 17 Japanese surrendered on Tarawa from a defending force of about 2,000. More casualties were suffered on Tarawa per square mile than anyplace else anywhere in World War II.