Star Trek still does this, as someone mentioned about Strange New Worlds. Discovery has perspectives about authority and insubordination, about collapse of civilization depending on a single resource (dilithium), and what happens when a principled organization (the Federation) abandons its principles and is only worried about protecting the organization itself.
Starfleet Academy has explorations of what humanity is from Klingon/robotic perspective (very much borrowed from Worf and Data). It asks the painful question of what when the "good guys" are actually the "bad guys" and you end up a stray orphan because your parents are imprisoned for trying to feed you? What then, of improving the Institutions and becoming a better citizen?
Lower Decks also has a ton of lighter-toned ethical/moral explorations and young adults learning to become better versions of themselves. I think it's a very welcome tone change, and it's very accessible to people who haven't watched much of Star Trek, despite having tons of references to the universe.
Star Trek was always a very political soap opera: DS9 was about what the US government would call antifa terrorists seizing power on their planet. This hasn't changed, even though the formats evolved. Some i appreciate more than others, but i welcome this exploration.
DS9 was kinda crazy. It starts with the Bajorans, who represent oppressed and conquered Palestinian/Jews, winning against the oppressive colonizing imperium by using terrorism. It keeps making the point that against an immoral colonizer oppressing your land and people, terrorism is a moral course of action to win an asymmetric war.
Not sure mainstream tv would still follow this logic today.
To be fair though there were quite some attempts to see it from the other side.
I think the end of the story line ruined it though and the fact that all side stories and characters were all a lot more interesting than any of the "main characters". It's like each and every minor side character excelled in amazing and surprising ways coming out of nowhere, while the main plots main characters were largely kind of dull (with exceptions once in a while).
Maybe they just overdid it with two shows largely running in parallel and then wanting to wrap things up?
That said I think the asymmetric war was always - throughout all of history - a classical topic. Everyone wanted to portray themselves as the rebels fighting an impossible fight. From David and Goliath over the French and American Revolutions, to Putin and Netanyahu trying to frame things as "being surrounded by enemies, fighting on their own". Heck even the Roman Empire tried to internally portray imperialism as just, being attacked by the whole world of wild people. Or look at how the left and the right nowadays portray the government as that big oppressor secretly or openly working with the other side.
There is an interesting... not even a show.. let's say "animation series" called Aeon Flux (not the movie, not the comic show) that tries to go into these perspectives a bit, but it kind of stands out among all the media that is either "that evil oppressive regime" and "those horrible terrorists". Wished there was more like that that didn't feel so try-hard.