I think that's what they believe, but I buy Douglas Rushkoff's argument that this is a collective illusion on the part of the billionaire class. See https://rushkoff.com/books/survival-of-the-richest-escape-fa...

There’s a lot of Russian billionaires discovering that their freedoms aren’t as unlimited as they thought…

Don’t you think billionaires would also rather sip cocktails on a beautiful beach vs their concrete bunker? There’s only so much you can do to spruce up a bunker. They’re not rooting for global warming, as a class.