I'll give them that! Digital dualists are saying that those online are false and constructed-they absolutely are! I don't see how people can argue that? To me, it doesn't seem debatable at all. What is debatable to me, is how far off that is from a person's "real and genuine" persona. Meaning-can't your real life persona mean that when you are online you construct your identity but in person you're more spontaneous.
BUT ALSO how are we not talking about how people also "construct" themselves or "perform" in the physical world. People wear masks and pretend all day long, only choosing what to reveal and to whom, at their will.