Yes I think spam is bad and should be fought, we're on the same page there. But I am not allowing any exceptions to the rule. The rule is conflict resolution. What you are calling exceptions are THE ethical rule. People can spam the system claiming to be a victim, but they become aggressors themselves when and where that is egregious, and the rule implies that they need to be fought too. The rule prescribes a system that is self-healing.

Ok that last part is again going into information as a class vs individual copies of the information. I said property is denoted by ownership of all the information sufficient to exclusively control the resource (resource could be a bitcoin UTXO).

If someone gets a copy of that information via coercion, like breaking into your house and finding your private key, you have now lost exclusive control of that UTXO. You hold your keys, but you no longer exclusively hold your keys. Further, the thief spins up a hot wallet with your key and initiates a transaction of all the bitcoin from that UTXO into a wallet that they exclusively possess. Now it is in someone else's exclusive possession.

In both of these scenarios after the coercion has taken place, the information sufficient to exclusively control the UTXO is no longer in your possession (because holding the keys doesn't grant you the ability to stop the thief after that point, unless you manage to kick his ass and stop him in the act, to initiate an emergency vault transaction, to enlist really competent police on your side who can guarantee recovery, or some such stuff, and even then, you are inconvenienced). This is the case because aggression has taken place (aggression is coercion, I use these words interchangeably; I also consider fraud a form of aggression). This is exactly what force is good for, resolving conflicts in favor of the person not aggressing. This is the proper use of legal force.