Re-watched Texhnolyze again, some interesting points

So I rewatched it again with English dubbing (I know I know, I'm a philistine) and I did realise a few points, at least a few I haven't seen mentioned on the Internet.

Throughout the series most of the characters constantly reiterate that Lux will soon come to an end and that it is unavoidable. Initially Ichise tries to fight this, but obviously he can't. I realised that no matter what, Lux was always doomed, and has been doomed since the very first day the city was created.

Most of this I inferred by the way, so feel free to correct me. When we visit the Surface world, we see that humanity is dying out. Saginuma (the girl with the ball, later an old man with an umbrella and orthotics on his legs) explains to Ichise that "[Ichise's] people" were sent to Lux in order to remove "dangerous elements", but despite this, the people on the Surface World (the Theonormal) were unable to prevent the death of humanity.

Although it's implied in the film that Doc and Ichise watch, that the criminals, violent people etc were sent to Lux for some reason (I guess you could say, so the Theonormal could find a way for humanity to evolve), that without violence and negative aspects, humanity would fall into a serene dreamlike existence, where nothing would happen, no one would do anything and all cares would be forgotten.

This is the real reason I think Lux is doomed, since the Theonormals have all given up on life, the last few hanging onto theirs (that includes Yoshii), decide to go to Lux to continue living (which is what Sakimura did, and eventually what Yoshii did). It's because the Theonormals failed and gave up, that caused the chain of events to occur which eventually drove Yoshii to incite chaos, and end everything as we know it.

Another point, Shinji and others often mention the "light on the hill", but it's only ever implied that they're referring to the Class in a positive manner, as a place that they all want to get to someday. Later, Shinji discovers beings made of Raffia in a pool of water (who he eventually slaughters). One thing I believed is that while Kano and Doc both believed their versions of texhnolyzation would save humanity, maybe someone else in the Class believed that these beings made from Raffia (or a combo of human and Raffia) were what humanity's evolution would be.

One more point; I'm don't think I believe the theory that the whole of the series takes place inside Kano's mind. I think it'd be a convenient explanation for some of the more mysterious aspects of the series that come into play later (the Obelisk bleeding when Oniishi stabs it, Saginuma taking the form of a small girl with a ball etc.) but I think each has it's own explanation. I know at the end of the last episode, particulary over the credits, the world darkens and fades to nothingness, implying that by killing Kano, Ichise has in effect wiped himself and everyone else from existence. But I think also, the fading to black of the scene is just a design decision, not the last elements of the plot. But the amazing thing about the anime is that both theories could still stand. Anyone else got anything to add?