Clutch
<---Pass
It's not that diesel doesn't make sense for most HD buyers, it's that a 6.7 liter twin-turbo diesel putting out 1000 ft-lbs of torque is simply unnecessary for nearly everyone. So then you're picking between overkill but some better efficiency towing with the diesel and a gas engine that's a better fit for what you need but will drink fuel towing. If they offered something like Toyota's 4.5 diesel V8 (270 hp, 480 ft-lbs) it would make way more sense for most people who want to tow more than a half-ton is comfortable for but not drag the moon out of orbit.
Someone at my work has a newish bro-dozered out 3500 Silverado. On the rare occasion like today I drive my Range Rover to work I like to park next to it and appreciate the fact I spent 3% of the money, tow just as much with it(nothin), have taken it to way more places and honestly probably even have a better on-road driving experience.
Nissan is trying that very thing with Titan....poor sales though. Should be the goldilocks of diesel power plant sizes...but not too much gain in efficiency [if any] compared to the other diesels putting out twice the power.
Those never been off-road bro-dozers are hilarious. "Nice truck man! So sorry to hear about your penis..."