Star Trek is one of the things I still hang onto as optimistic about the future. We can make a better world for everyone and overcome racism, capitalism, transphobia, etc. We can build something better and reach for the stars. And that's always been the message. The characters have advanced technology like ships and teleporters, but what's really advanced is how they are as people. They're curious, educated, accepting people who want to explore the universe for the sake of it.
I also hang onto the X-Men. That was also important to me growing up, seeing how the characters could come together to defend themselves against hatred. I grew up in a really conservative area so I'm always gonna be grateful to Star Trek and X-Men (and later all sorts of books) for keeping me sane as a kid
Star Trek and X-Men were a huge part of my childhood and teen years as well, so I 100% get where you're coming from.
Only tangentially related, I really do wish Marvel would take a back to basics approach with the X-Men so I could get into them again. I know a lot of people love the Krokoa era, and I'm happy they have it, but for me it is too dense and too far removed from what I grew up with for me to be able to penetrate. I know they've got an upcoming sea change happening, so maybe then.