There's an enormous difference between a physical object, which has inherent scarcity; and information, which does not. We strongly enforce property rights on physical objects because since they are scarce, theft is possible (if a person acquires a physical object then someone else acquires it, it is necessary that the original acquirer no longer possesses it - therefore either it was a gift, or it was paid for in some manner, or the second acquisition was theft). The notion of theft of information was invented by politicians due to an utter lack of creativity with respect to how to incentivise the creation of a non-scarce resource. While physical property rights are rights in the positive sense (they grant owners of physical objects the right not to have those objects removed from them without due consideration), intellectual property rights are rights only in the negative sense (they grant the owners no inherent abilities they did not already have, instead they only restrict the freedom of others by limiting their rights to acquire something that would otherwise be limitlessly abundant).

You’re still not getting it. The “gift” I describe can be a letter or photo of personal nature. My point stands.

Grandma gifts you a photo of her and her partner. Do you believe that you shouldn’t be able to show your own family their ancestors picture?

It’s obviously not reasonable. She could explicitly ask, but ultimately the choice is yours.

You don’t really need an example scenario - just take YouTube, the largest source of creator content - it does nothing to prevent you from sharing the videos.

Ultimately if you feel like you’re being wronged DMCA should be used and not a programmatic approach simply because a program has no notion of who was right to begin with.

So in your example you say “my art”, but what if it were not? Should you not be able to post “your art?”

I believe people should handle people issues and computers handle, well, the other stuff.