From purely cold numbers and facts point of view (ie fanatical suicidal resistance US troops faced everywhere, projected into conquering whole Japan), it makes

From purely cold numbers and facts point of view (ie fanatical suicidal resistance US troops faced everywhere, projected into conquering whole Japan), it makes sense. That doesn't remove any force from that simple horrific statement of yours to be clear, it was the biggest mass murder of mostly civilians in history of mankind. But indiscrete bombing of German cities at the end of WWII wasn't that much better to be honest. As for why the cold harsh reality of this is ignored/amended, that is pretty easy to understand. You can see it in history of every single country, mine included. Dark parts of the past are not taught at school, and if they are usually in very subjective way. No country would ever approve teaching material that would paint it in any bad way if it can be omitted (but I presume Germany can't really avoid cold harsh look at the topic of WW II for example). One of the reason I am not fan of any form of stronger patriotism (apart from being 'loyalty to the real estate') - probably no country out there deserves to be smug about itself. I am looking at you France, US, Britain, Russia, Netherlands, Belgium, Spain, Portugal etc etc. A bit of humility and self-criticism would benefit us all. Something in the vein of recognizing the mistakes of the past, so next generations can actually learn the hard lessons and try avoid them.