I'll take a stab... (See disclaimer at the end)
Are Hummers truly the evil vehicles Environmentalists make them out to be?
I personally think that it's a soccer mom trend. Just the other day I heard a soccer mom comment on her recently purchased new H3 at a check stand in Yosemite. She was bragging about her new Hummer to complete strangers. It doesn't get any worse than that. H2 and H3 are a literally a joke. I mean don't get me wrong, they do get you around, but they are the laughing stock of the SUV family. GM keeps re-engineering the parts that break, but they should face it, it's not a Hummer. It's a cheap replica for posers (no offence to guys who own one) with an "I own a Hummer" attitude. One of the most ugly vehicles in history has got to be an H2 canary yellow with 24's on it.
Someone who actually needs a Hummer will buy a H1. Someone who wants to pretend that they need a Hummer will buy a H2 or H3. H2's and H3's were developed without the guts of the real Hummer for a reason, they had considered making the H2 tough like the H1, but realized that they could get just as much money for the H2 with Chevy Blazer running gear and the Trailblazer steering column. So why not save money and just buy the Blazer or the Trailblazer? Simple// poseriffic! Just like the Porsche Boxer (old one,) it may not perform like a Porsche, but hey it's a Porsche.
Get a bunch of soccer moms on a Ford Excursion or H2 kick and you have a movement... A genuine, gas guzzling, "I'm off to the supermarket by myself (good thing I own a Suburban with a 10" lift)" movement.
I actually have a family problem because my older sister (single w/ 3 kids) refused to take the company Suburban (96 for 10 grand) because it was not the new body style (2000+ for 25 grand+) So now, my sister does not talk to my mother, and my mother can't see her grandkids because of a selfish soccer mom who's life long dream is shattered because she can't have the latest and greatest Suburban. Talk about obsessive.
But, yeah it's a movement and taking it in a different direction would be beneficial for our stay on earth, in the long run. You have to start somewhere. If you commute in a H2 then you should consider buying a second car strictly for commuting.
Disclaimer: This discussion is for playing devils advocate only. This site does not necessarily reflect the same gas hog bashing opinion as I do. I am only bashing gas hogs for sake of discussion. Please don't take anything I say personally. Personally, I drive a MR2 spyder and a Tacoma V6 (not much better gas mileage than a H3.)