For the elites maybe success means something different to us.
Being locked in a fortress with a few dozen armed men who’s loyalty depends on “currency in a bank” having any value doesn’t seem very safe to me.
But what do I know, I’m not a billionaire.
But I don't doubt the actual result will end up like the Don't look Up satire
1. Segments of the local population are armed as well or better than their security contractors and outnumber them thousands to one.
2. None of the locals are confused about where the canned goods are being hoarded.
3. Heavy equipment is both ubiquitous worldwide and shockingly simple to operate effectively.
Tins of beans in fallout shelters are there to get you though the worst 30 days, and then rebuild. If there is global ecological collapse, who cares if you're stocked for 2 years? Unless you've got a lot of farm gear, tooled for future environs, and lots of people to use them, then you're only promising yourself a slow death later.
I've heard this a bunch and even seen a article -- "ultra wealthy creating climate change bunkers" but never heard any specifics. No one named companies building them, or where they are except some nebulous reference to New Zealand.
The whole thing reeks of "can't be proved, must be true" FUD clickbate.
These together function as a bunker with armed guards to protect them against the effects of climate change.
When it is too smokey in Claifornia where one of your mansion is, simply fly your private jet to Kamchatka where you last parked your superyacht. Or if it is also smokey in Kamchatka, you have a smaller yacht parked in Patagonia.
Are you in Florida and another hurricane is on its way? Notify your private chefs in Egypt about your plans to stay in your palace over there for the next 3 weeks.
A billionaire is only a billionaire if there's a society to be richer than 99.9999% of everyone else.
If wealth is measured by how much ammo you've got, your bank account or the fact that you have lawyers on retainer won't mean much.
A brief blip of liberal democracy has only been made possible by a surplus of resources created by industrialization. If that surplus disappears, or gets fully siphoned up by the elites, we'll be right back to times of feudal lords, their knight-enforcers, and everyone else.