I always love these rant threads, which is really what this is. I understand; my temper would be high after almost getting creamed by something big.
Frankly, I love how some people can justify that whatever THEY consume is an acceptable level, but anything above that is excessive. One night when I was gassing up my 10 year old Expedition, a woman at the pump in front of me, gassing up her new Prius, took me to task for driving such a big truck solo. Now, I'm not a noble person by nature, but it just so happened that I had the rear seat down and was carrying a pile of stuff to a church fundraiser, mainly because I was the only person that actually had a vehicle that could even fit the stuff, or pull the trailer full of hay bales. I pointed this out to her, and remarked that it would have taken her 10 trips to haul what I got in 1 trip, and she still would have been stuck with the hay bales.
Didn't matter... she had her mind made up; I was the wasteful one. But to her, it was perfectly justified to buy a new car, with a huge "footprint", and tool around solo, as long as it got 30 mpg.
For the record, I split my commuting time between the Expedition and a Suzuki Samurai. I generally like my stuff small, not because I'm frugal, but probably because of my nautical nature. I found 9 years of submarine duty enlightening on what one can do with tiny amount of space. But for all the times I've thought about ditching the Expedition, and there have been many, the truck has been extremely useful in a way that no small vehicle can ever replace. (And here's a little known fact: the Samurai really doesn't get as great a gas mileage as one would think for a 2100 lb truck. Well, 2150, after I added the veritable steel cage for the back so I could fit my little girl's gi-normous booster seat back there... Even after all that, I think she's safer in the Expedition...)
To the OP: Honestly, what kind of fuel economy does a 89 Toyota 4Runner (with a stock 22RE, 5spd, 33x10.50 BFG At's, Marlin rear Bumper, OME Dakar / BJ Spacer lift + OME Shocks all around (and the SS),4.88's) get anyway? I bet not any better than today's "full-size" trucks? And Lord knows emissions have come a long way in 23 years...
We ALL have an impact on the planet. You, me, everyone on this board. The trick is to minimize it to the extent that we can. Even if your impact is smaller, it hardly makes you "right", and others "wrong".
Stimulating topic, of course, and it's nice that we can converse as gentlemen. Thank you for that!