Drama is conflict.
Conflict exists in dystopias.
The moment that DS9 showed us a Federation with a darker side is the moment that the Federation became more interesting to me.
A balance is possible I suppose but personally, I'd like to see some complexity and darkness.
For me, DS9 actually made the Federation less interesting - in later season, such as the episode where Ezri Dax visits her family as if on a holiday - it seemed like space had been turned from "a humanitarian federated union of exotic planets" into "I took a flight from New York to Washington State on business". Starships being blown up in huge numbers made them seem less unique - more like WW2 fighter planes. In contrast, when the "Churchill" went down in Babylon 5, it sent shivers through my body - the episode Severed Dreams is still incredible. And that was a starship that hadn't even been featured in any other episode.
JJ Trek actually gets it right by injecting an element of James Cook-ian distance back into the Federation, by making Vulcan seem genuinely a foreign port with a unique society. Enterprise also tried, especially under Manny Coto.
Do we really need to see a society that is a mirror image of the continental United States?
What I'm getting at, others have said better:
I'm fed up with the dystopian cheese you're being forcefed in today's tv etc. It has become rather annoying since all the shows turned into "bad mood" tv.
I don't need to watch Ensign Borderline cut his/her/its wrists between missions. The positive view is an essential part of Star Trek.
That's exactly it. And the bad example to me is Stargate Universe, which was a clone of NuBSG.
I agree to BillJ too. "positive future" doesn't exclude drama or excitement
Whenever anybody asks me how I can enjoy sad, depressing movies I say "It brings me joy to be emotionally moved in any direction".
But the positive image of the human future is a big part of what makes Star Trek unique and a big part of the reason people still obsess over it.
My general point to everyone is:
Nobody has ever argued for a Star Trek without conflict, or for perfect characters, or a perfect society, but what we are saying is that science fiction can also be an avenue for the exploration of social ideas that
haven't actually happened. The Federation need not be mired in every problem of our own time - part of the enjoyment of speculative fiction, is, after all, speculation! We can imagine better systems, better worlds - "people find it easier these days to imagine the end of the world than the end of capitalism" indeed! What is the point of social science fiction if it doesn't explore strange social ideas and experiment? TNG was imaginative, not unrealistic! Are we content to be less imaginative than Ming Dynasty China? Even they were not all super-conservative "things have happened this way for a thousand years" - they had social fiction about the overthrow of the Mongol Yuan dynasty, and flights of fancy like Journey to the West. But we in the 21st century are content to say "people don't change, the fundamentals of civilization and economics remain the same, so let all our drama reflect this". Why bother reading sci-fi then? I can read a history book, if all I want to see is what has happened before. GRRM's books are more or less the same as reading "The Siege of Constantinople" by Roger Crowley; so why did he bother writing fantasy? (I still enjoy it, but I'm saying, it hardly takes advantage of it's genre to run with imagination).
This wasn't directed at anyone in particular - it's not a reply but a general response to the idea that dystopias like Battlestar Galactica, Stargate: Universe, Game of Thrones and so on are somehow more mature or realistic. I don't think a work such as the Lord of the Rings is less mature because Aragorn doesn't have a tax policy - or that Star Trek is less complex for saying humanity had evolved socially. Actually I view them as two of the most mature and complicated works of fiction I've ever read - and I wager they will be remembered long after flash-in-the-pan dystopias have lost people's interest. I think to argue that they are less complex misunderstands the purpose of speculative literature or drama, or to judge it by rules it never had any interest in following to begin with.