It feels like you're picking apart an argument I didn't make. But I would note that most people don't see this so unambiguously as the position you're defending. To give you an analogy: doxxing is "fair game" too if you posted your info online or gave it to others. But it's not exactly cool to do it, right? It's a subversion and abuse of the system we have in place.
Finally, here's a fun experiment: decide that terms of service don't matter and start building a product by scrapping Facebook or Google. See how they'd react. Actually, no need for guesswork - they clutched their pearls and threatened legal action more than once before. It's a bit of a "have your cake and eat it too" kind of a deal. Their data is precious intellectual property; your stuff is, well, up for grabs.
Finally, here's a fun experiment: decide that terms of service don't matter and start building a product by scrapping Facebook or Google. See how they'd react. Actually, no need for guesswork - they clutched their pearls and threatened legal action more than once before. It's a bit of a "have your cake and eat it too" kind of a deal. Their data is precious intellectual property; your stuff is, well, up for grabs.