I hear what you're saying, but the analogy doesn't hold because we no longer need horses. In order to use Facebook, you have to sign up with an e-mail and typically a phone number (and in many cases, a photo ID, birth certificate, etc.)

If we need e-mails and phone numbers to sign up for social media, then we don't actually need the social media. We can go back to simply using the numbers and e-mails.