if everyone would lie in that circumstance, then no one would believe what you say.
This is only true if the other party is aware of the circumstance. If they are not—if they are already deceived about the circumstance—then if everyone lied in the circumstance, the other party would still be deceived. Therefore lying is not self-defeating.
I was just pointing out how Kant might justify self-defense but not lying in self-defense, in summary. If you’d like to disagree with Kant, I suggest doing so against more than an off-the-cuff summary.
Though I don’t recommend bothering with it, as his ethics is based on his metaphysics and his metaphysics is false.
This is only true if the other party is aware of the circumstance. If they are not—if they are already deceived about the circumstance—then if everyone lied in the circumstance, the other party would still be deceived. Therefore lying is not self-defeating.
I was just pointing out how Kant might justify self-defense but not lying in self-defense, in summary. If you’d like to disagree with Kant, I suggest doing so against more than an off-the-cuff summary.
Though I don’t recommend bothering with it, as his ethics is based on his metaphysics and his metaphysics is false.
Understood.