Slight disagreement here: I don't think it's an issue of in-person socialization, I think it's an issue of non-person socialization. Keeping track of real people that you know in real life, or even meeting real people in small, closed groups (ideally physically local to you) is a great thing that social media does. Robot armies owned by nefarious actors whose whole purpose is to elicit any emotional response from you is also a thing social media is really good at. Digital Everything might not be what was promised to us but it's here and it's not 100% useless. After all, aren't we here on a social network having this discussion right now?