Bro, I'm talking specifically about Gaza. I'm neither condoning nor pushing for suicide attacks, I'm just saying that I understand why they might be going this route.
My Sun Tzu quote that irked you is still valid on a human level, the Gazans are cornered into a couple of small areas with either the expectation of being moved again or bombed right there. They've got dwindling supplies of water, food, medicine and frankly hope. No nation on earth other than Yemen is doing anything to stop their plight, Hamas will never surrender just like the Israelis will never surrender. With polio thrown into the mix it's just inevitable death for the Gazans.
Every single person alive in Gaza right now knows of someone personally who has died in the last 9 months, there's no dearth of recruits for suicide missions.
I really hope that international pressure on Israel grows and that America stops it's military and diplomatic cover for Israel because this conflict is devoid of any military logic and the longer it continues the more likely that many many countries will stop respecting current international law.
The problem is, is that quote is completely not referring to what we're discussing here
I've read the Art of War in both English and Mandarin (been studying that language for 6 years now) and there's a lot of context that's missed out here.
a) That passage is referring to specifically, pitched battle in 5th Century BC Zhou China. Casualty rates for pitched battle that were recorded puts it in the 10-20% average, though sources from those times are usually quite unreliable.
b) The point that the book is making, is around force preservation. The vast majority of casualties in ancient pitched battle is "after the fact", when one side has decided to give up and retreat/flee. That's when the majorities of casualties occur.
c) "Never put your enemy in a corner" refers to never put your enemy in a situation where it is forced to fight. Half the book is about how to win wars without actually undertaking much bloodshed.
d) The explanation that follows is that in a tactical pitched battle, the defeated force, even when suffering light casualties, takes a very long time to replenish it's morale and organization, giving the victor short-medium term strategic flexibility in what it wants to do. By simply scattering the opposing army and forcing a retreat, you now have complete intiative.
e) By forcing unavoidable pitched battle, you are forcing a bloody confrontation in which you might not even guarantee victory but what you are guaranteed is heavy casualties.
This can be shown with the Roman performance in the 2nd Punic War, by consistently forcing pitched battle with Hannibal, only to get ravaged time and time again. However, this Art of War quote "catch all" isn't all entirely accurate either. There are some times when encircling and annihalating an enemy is absolutely worth it (Cannae, using the same Punic war example). You have to read this from the lens of a 5th Century BC Chinese Warring states perspective. Land territories were gigantic, and it wasn't like Romans fighting a campaign in Gaul scope. Qin Shi Huang basically fought on strategic battlefields which covered the entirety of Western and Central Europe in size. Everything is about maintaining manpower (especially since armies were levies who had to go back to the fields after the war) and maintaining huge supply routes and chains (which again, Art of War spends half the book describing).
In 5th century BC Zhou China, this was all very relevant.
In 21st Century AD Gaza/Israel, most of this is wholly irrelevant.