I always have problems with the type of discussion in this thread because I see Roddenberry's so called vision as simply a TV show concept. I guess it can be called visionary because it turned out so good, popular, forward looking, prescient and influential.
Spartacus is a TV show concept, CSI too, Star Trek TOS, TNG, Elementary, Farscape, 12 Monkeys are all different TV shows concepts and, that's what is important for me, they could have been created by the same writer. The same TV show creator.
In my mind, Roddenberry could be the same guy who came up with Star Trek TOS, TNG, Spartacus and Game of Thrones. That aspect is very important for me and to understand this post.
For example, TV execs could give students or would be writers 2 different assignments.
1) Write a dystopian future Sci-fi story
2) Write a non-dystopian future Sci-fi story
If a particular student writer or future show creator is very good. He could have come up with 2 great stories. LIke 12 Monkeys for the assigment 1 and Star Trek TNG or TOS for assigment 2. So this good student writer/TV show creator could have come up with both 12 Monkeys (or BSG), and Star Trek TNG. It's 2 different TV show concepts.
For me Roddenberry is just a guy who came up with an original TV show concept called Star Trek which was accepted by TV execs, put into production and eventually became popular.
Most Hollywood, sci-fi books, TV shows and even Sci-fi in the 50s and 60s, usually come up with a dystopian future. Technology turning against us. Tyrannical government or corporation taking over. Individuals right abolished. Aliens attacking earth. Science experiment producing monsters. Etc.
So, it made sense that some author or TV creator (pitcher, pilot writer), came up with the idea of not writing a dystopian sci-fi story, if not simply because creatively it's something different, while being possible for the future. So the basic for a good/realistic/interesting story.
You can have a dystopian outlook on the future but also you can have a more progressive outlook on the future where science continue to lead humanity to new heights in development, human rights, individual freedom ,and quality of life. Of course, it's also possible for science to lead us to a nuclear holocaust, destroying planet earth. Instead of being progressive, it can be regressive for humanity. A dystopian future is possible and can also constitute the basis of a good story.. Dystopian future sci-fi are a warning based on our fears of the future. A warning of things to avoid.
So I don't see all the hoopla about Roddenberry's vision. For me, it's just a TV show concept. A "what if". For me Roddenberry's so-called vision is Star Trek TOS and TNG (especially the first seasons), simply because he's the one behind those TV shows. He could be the guy behind 12 Monkeys, Game of Thrones and Sliders, and I would say he had 3 good "visions", 3 good TV shows concepts.
When people attack Roddenberry's vision in relation to Star Trek, I feel they attack the whole Star Trek concept (TOS, TNG) and what make Star Trek unique. Star Trek is just a TV show concept. A TV show idea pitched to TV execs after writing/creating a pilot and basic outlines for it.
The way I see it, if you don't like "Roddenberry's vision", you don't like Star Trek TOS and TNG. You don't like the TV show idea that is Star Trek TOS and TNG.
I see Roddenberry who could be a guy trying to pitch different stories to TV execs, One about a police man, another one about a dystopian future, another about a non-dystopian future wagon in space, etc. If one of them is taken and become popular. You're happy.
If you're the creator of those shows you know what makes them unique and you don't want people to change the concept. For example, I like Game of Thrones, I like comedic shows like Seinfeld. But I don't want Game of Thrones: Discovery to be turned into a comedic show like Futurama or the Bing Bang theory. In a way, it's ridiculous because those are different TV shows concepts. Game of Thrones shouldn't even be like Spartacus either even if they are closer in style. They are each their own show. If I was the Roddenberry's of those show, I wouldn't want them to turn Game of Thrones: Discovery into a comedy or a show like Spartacus (whatever that means). Those are different concepts for TV shows.
If you take the Star Trek concept and do something completely different with it. For example, turn a non-dystopian sci-fi to a dystopian one, you're just changing the concept, one of the aspect that made a TV show unique. It's happens sometimes in Hollywood: Batman, Total Recall, etc but I don't like it. It's mostly for the money, for the name recognition. You keep the name but creatively you don't keep the same concept in spirit. I prefer when people come up with their own concept for movies and TV shows if they want to make something different. I'm a big fan of action-adventure space sci-fi, and sci-fi in general, and looking forward for more.
If you say you don't like Roddenberry's so called vision, it's because you don't like the original concept of Star Trek TOS and TNG and I don't see the point. You don't like the basic ideas behind Star Trek TOS and TNG. If I don't like Game of Thrones and prefer Seinfeld, I don't have to turn one into the other. If you don't like Star Trek TOS and TNG, you don't have to turn them into BSG or Total Recall original. Those are 4 great but different tv shows/movie concept. If you do, it's only for the money, marketing/name recognition (even if it can turn out to be good).