I don’t think that is right. Defense and offense are basically different games. Currently my desktop is 100% safe (it is powered off).
That’s a dumb edge case, but it makes the point, you can always be more secure by cutting features. Maybe intelligence moves up the amount of complexity you can securely handle? But it is never much.
That's why I said there's a good chance we shut down the internet. An off/unconnected computer is the only way to be secure. Our stacks are so unimaginably complex that just connecting it to the network opens it up to every undiscovered vulnerability that it contains at every layer of the stack.
Even disconnected, if the computer is just passively listening to bluetooth or wifi, it is vulnerable to exploits in those stacks as well. AI has already demonstrated it can zero day with ease. An AI another order of magnitude stronger than what we have today could potentially zero day worm lockout every electronic device tangentially connected to the internet in an afternoon.