Oh? Really! What happens when someone gets sick or injured? Have they the technology to mend the illness or injury? This is absurd, manipulative thinking. A fantasy world is just that -- a fantasy world. It cannot be real. Reality does not include perfection, since perfection is subjective to individuals.
It is not real. That is obvious, and not what I'm arguing. What I'm arguing is that it
could, be real, if someone with the skills and means wished to make it so. I don't believe you've actually argued against that. You've only repeated that it isn't real, and that, somehow, it can't be. You've not supported that assertion, though.
Most religious beliefs say that there exists someone with the skills, means and motivation
to make it so... yet it isn't.
The earth is a good place for us to live. It provides food and water in abundance. it provides means for the alleviation of physical and mental malady. The sun lights us and warms us.
Pandora does all of these things, and then goes steps further. It does not merely provide the means to alleviate disease,
it cures them automatically, no biology knowledge required! (Though this is mentioned more in the background materials.) It provides communication facilities rivaling the Internet as in-built part of the flora! It produces naturally occurring, self-repairing dwellings as space-efficient and intricately designed as our tallest skyscrapers! (with structural engineering to match.)
All of these are ways the Earth could have been improved but, mysteriously, wasn't.
I submit that we in the 21st century are far better equipped to take care of ourselves than the iron-age characters in the movie. We simply aren't shown the full spectrum of variables in such a world. But they would have to be many.
Why? You keep making this assertion, but haven't backed it up. Why is conflict between man and his environment somehow mandated by existence? Why can man and nature not
perfectly co-exist? (As opposed to what's happened on Earth, where nature will attack you at the first opportunity.)