You're right though, there's nothing you can do. Reasoning with them or talking to them won't help, and if they're caught in some delusion, they'll find ways to justify it (and turn against you in the process, if you try to talk them out of it). All you can really do is step back and wait for the inevitable, and then not say "I told you so". And maybe it IS time to step back, harsh as it sounds.
no subject
You're right though, there's nothing you can do. Reasoning with them or talking to them won't help, and if they're caught in some delusion, they'll find ways to justify it (and turn against you in the process, if you try to talk them out of it). All you can really do is step back and wait for the inevitable, and then not say "I told you so". And maybe it IS time to step back, harsh as it sounds.