It seems quite a few people in this thread actively hate the old shows and movies. I admit I hate Enterprise but in general I love Trek and all it stands for. I think it's amazing that Roddenberry, Berman, Braga, Behr, Moore, Taylor and all the others created this huge shared universe. I, for one, don't consider Star Trek a dead corpse in need of a reboot. That's fine for the movies as a way to bring Kirk and crew back and pull in the casual cinema goers but there was nothing wrong with the Prime Universe all these talented people created (apart from the slap in the face known as Enterprise).
Some other stuff I've watched that came back from a period of being dormant includes The X Files, Dallas and Twin Peaks. Without taking into consideration the success or failure of these properties (2 of them haven't even aired yet) the fanbases were excited to see old characters and settings return as long as something fresh was brought to the table. I never saw fans of these shows stating they are dead and buried and their continuations should ignore them in favour of a clean slate. Half the fun of being a fan of something long running is the expanded world it creates over time. For me anyway.
I just don't see the value of taking something already in existence and steam rolling over it to make a new show. I guess writers and producers have to take the jobs that come to them to make a living but if I was interested in creating a brand new show from scratch I wouldn't hitch my wagon to something like Star Trek that's already built up its universe. Instead of rebooting an existing property I'd sooner create a new one. It's an honour to be asked to take part in Star Trek. Not a chore. 700 episodes and 12 movies is a blessing, not a curse.
I don't think any of us actively hate all of the old movies and TV shows. But they have had their day in the sun.
And no one is saying ignore Trek in its broadest strokes, but how many fans are going to complain if it is set in the Prime universe and they get
ONE thing "wrong?" 700 episodes can definitely stifle creativity in that regard. It's taking the idea that there is a Federation, Starfleet, Klingons, Romulans, Kirk, Spock, Khan, a Romulan War, a Neutral Zone, ongoing conflict between those sides, and just using broad strokes around them. Not taking it from the perspective of "Well, McCoy said the Vulcanians were conquered in "The Conscience of the King" so CANON!" That's an extreme example because its been ignored but the difference I think the majority of us see in being chained to those 700 episodes doesn't allow a fresh take. It causes problems with some fans that the NX-01 looks more advanced than the 1701 but in reality, even the NX-01 bridge is dated now.
Why shouldn't we want a fresh take on the 23rd century from 2017 eyes?