Well yes, you are destroying their property. You harm others by destroying their things, both physically (it consumes time to replace them, it inconveniences them if the target of vandalism, theft, or other defamation becomes unusable, etc).
It is why I brought up pets as property, to cover animal cruelty. If someone else recognizably owns something in the legal system (via valid transaction recognized as voluntary exchange on the part of both parties) than someone else misusing that possession in any ways is grounds to cause harm to the owning party, given that the violence against property was not agreed upon (ie, the owner didn't say demolish my house in a contract).
It is why I brought up pets as property, to cover animal cruelty. If someone else recognizably owns something in the legal system (via valid transaction recognized as voluntary exchange on the part of both parties) than someone else misusing that possession in any ways is grounds to cause harm to the owning party, given that the violence against property was not agreed upon (ie, the owner didn't say demolish my house in a contract).