First, your analogy is broken -- roads, telephones, pen and paper, motor vehicles all fit your description just as aptly.
Second, you propose your preferred moral economy as one that only curtails harms. In fact, you create another harm implementing what you think is right.
Reasonable people disagree about which is worse -- the creation and public support of a technocratic oligarchy in control of how humans communicate or the proliferation of some harms that take advantage of unfettered communication. But please don't be simple minded, pretending to yourself or others that there aren't real costs, social and physical, on both sides of this.
For myself, I think private communications are a human right and a massive good for society, and I don't condone criminal acts undertaken using messaging.
