Now, you are right: there's a limit to antifragility. I don't think the book clarifies this point.
But anyway, Taiwan being consumed by China is exactly the kind of thing that Black Swan and Antifragile deal with.
I mean, that's the whole point of the book.
But these problems are way, way larger than one single company. Are we really expecting Apple as a company within the global capitalist system to just isolate itself from the network and do everything themselves without relying on anyone anywhere? At that point no company in the world is antifragile, and never can be if it works within the capitalist system or relies on any sort of co-operation between people.
That's not really what it's about.
I would say an antifragile system is one that adapt to changes (even unexpected one).
A good example are businesses that were able to adapt to covid and earn more revenue by doing things like providing delivery services among other things.
I don't think antifragility is achievable by some kind of process. You probably need live players[0] at the helm to take the lead and figure out ways to adapt to new circumstances.