Scorched earth warfare had been dead a long time until he resurrected it.
Any general today acting like him in Iraq of Afgan would have been court martialled.
Maybe if they had acted like him, we wouldn't still be fighting that friggin' war, and losing more ground, more blood, and more treasure each and every day. Oh yeah, and tearing our society apart in the process.
Maybe if we'd done a Sherman on the entire Middle East, those ragheaded goat humpers would be pi**ing their dirty night shirts every time they heard a 737 fly overhead, thinking it might be another bombing sortie come to lay waste to what remains of their pi**ant villages.
I say that as a Southerner, whose ancestors saw firsthand what Sherman did.
Immoral? Yes...but it worked. When it comes to war, what's more immoral...to lay waste to everything in sight and get your enemy to surrender unconditionally, or to stretch out the slow bleed of blood and treasure, and keep losing ground? Perpetual war is what's immoral. This thing should've been over and done with in six months.
Scouts Out! Cavalry Ho! God Bless Texas!
Like I said. Most humans struggle with the question.