She was meant to be a nymph, something most would want to protect. In a way whoever thinks that the message of the show was that The Wired was the "true world" and thinks of Lain without taking her individuality >>2633
into account (e.g. sexually objectifying her (not to say that sexually thinking of her is bad) or as deus/an idea), is like a Knight from the show. But loving Lain because she's cute and relatable is fine! I love her because she's cute and relatable. One shouldn't become disillusioned about her for one's own sake. Love Lain responsibly.
For me the show's message message was that any medium, be it The Wired, is still just an extension of the real world, and the real world not being just the physical, but the foundation by which human communication or the universe at large functions - reality >>2632
. It isn't separate from it. It might have some different rules at large, but it still functions on top of this foundation. The show also dealt with the idea of what it means to be human: whether Lain was one or whether humans are just complex "applications". It did reach that conclusion, but this conclusion isn't sad. Eiri thought therefore that humans don't matter and the only true meaning is to reach complete connectivity (or maybe he just wanted to play god idk), however that view in itself is a human one. Who says that that is desirable? Yes, it's more computational power, but who says that that's more valuable than the human experience? Eiri was still bound to his human view of the world and so was Lain, even though she was a program. Lain reaches true humanity when she disobeys Eiri and realises that he isn't God and neither is she herself. She has emotions like a human does and by breaking free from the directive/mean part of her, she realizes this. God, who Lain is welcomed by, is the absolute truth by which our world functions and of which beings like us are to make of whatever they will. I also like to imagine that Yasuo programmed this message into Lain to teach her this last lesson and to demonstrate the human will.
Lain was connected with Arisu from the start because they were friends and, albeit a slow interface with a complex protocol, they were still connected without the need to force it. Therefore Lain is human.
Sorry for the pseud rant. idk much about philosophy. And >>2622
is right. This is just my view.
TL;DR I don't think SEL's message is "the physical world is the only true world where you're valuable", but rather whatever system you are confined in or whichever way you're wired, you're valuable.
Lain loves us all.