Personal opinion incoming, not meant to offend anyone:
I'm not a huge fan of 6x6s. I understand the idea and the possibility of their practicality, but beyond a show of wealth, what's the point? It's probably safe to bet that most of them will never really see anything beyond pavement, at least not very much. The turning radius has got to be atrocious unless if you're ripping through the sand and can spin it on a dime, which I would love to see tbh.
Don't get me wrong, they're cool to look at... but I could find plenty of ways to better spend my money, especially if I was preparing for the end of the world. From the video I watched about the Florida company that made the Jeep Gladiator featured on Jay Leno's Garage, they seem to be playing into the "fad" of prepping. That being said, these guys make some serious quality stuff, and put a lot of pride into what they do. I would personally rather see some custom made 1 ton axles swapped under a TRX with some mad travel and low range for crawling, all while being able to crush some whoops in the desert.