I agree that shows need to change with the times, and also, I think the early TNG shows were very different than the original series, and that came from Roddenberry himself - I think his views changed over time. I actually think the shows got better after he was gone (RIP), because they could do things that he didn't allow.
They grew worse after he died.
Roddenberry kept them nerdy and quirky and breathed life into the characters--he was the heart and soul of Star Trek and could literally name every single component on a starship and how everything functioned. The new movies focused more on action and less on characters and plot, though I can see why after lessons were learned from "ST: The Motion Picture" and applied to "The Wrath of Khan." They learned the wrong lessons, however. ST II actually understood pacing and didn't overwhelm the audience with nonstop action, and maintained dramatic pacing and tension throughout, while still allowing for that Star Trek sense of awe and discovery that is important and crucial to the franchise. The new movies, for the most part, fail at this--especially the most recent film, "Beyond," which I felt was abysmal.
I actually liked "ST: The Motion Picture," and watched it over and over as a kid, because it was raw, pure science fiction and the polar opposite of "Hollywood." It almost felt as if it could have been something written by Heinlein, Asimov or Clarke, and that's saying a lot and a true complement to Roddenberry because he really stepped up his game there. I also loved "Wrath of Khan," however, because it preserved the ST ethos and built upon it further.
Enterprise was the last decent series for me, mostly because it maintained some of that crucial nerdiness that is essential for Star Trek.
I don't want swearing, gritty, in your face hoohah with anything new that is made, nor do I want a repackaged kid's rollercoaster ride movie like "Beyond" was. I want good 'ole fashioned Star Trek. If they can't give us that then they might as well leave it be, until someone worthy enough of Roddenberry's legacy, who respects what the man did and stood for in his writing, comes along and brings the universe properly back to life.