So my main problem with the “sieve” idea is that it’s kind of incompatible with the remainder of the Federation’s purported pluralistic values. To start with: It assumes that there is one homogenized form of “sort[ing] your shit out”, including achieving a very specific type of space travel. Which is not necessarily the goal of every sufficiently technologically advanced species. In fact, I’d argue that the expansionism inherent in space travel (alongside exploration, of course) is often reflective of worse planetary choices than simply choosing to live in peace and balance on your planet (see: Musk, Branson, and Bezos, Earth circa 2021, also “Star Trek: First Contact”). Who’s to say what the true bearing of peace is? Isn’t this definition fairly arbitrary? How many lives could be saved by simply sharing technology across sentient cultures? What, does the Federation no longer influence warp-capable cultures? Of course it does! (See: the Ferengi throughout DS9. They’re not Federation members, yet their culture is ultimately influenced by Federation values.)
That said: Star Trek has done some fascinating things with the Prime Directive, and I don’t think it’s easy to just come and reject it wholesale. I certainly don’t (again: “don’t colonize” is a pretty good approach!). I also deeply value its existence in-story, as a framework for what the utopian Federation can and should be. Many of the concepts made a lot of sense (abstractly) to the era in which the show grew up. But colonialism and intervention aren’t actually the same thing, at least not in many complex situations. In so many cases, the Federation’s “non-intervention” is a false choice that stifles other cultures more than it allows them room to grow/exist. (See: Bajor and the attitude toward Bajoran culture even after Federation involvement...)
There are plenty of bad episodes that showcase the worst of the Prime Directive in a way that seems unfair, as well as others that showcase the best. For example, I thought Lower Decks did a lovely job with “First First Contact”, in giving it a sweet, idealistic excitement factor (I loved the aliens whose names I’m forgetting pointing up to the sky in what was very much a curious, positive way! Even if that wasn’t quite what was happening, but all’s well that ends well...) and showing us Starfleet actually discussing how best to approach it. The episode gave depth to the idea that First Contact is something deeply important, careful, and thoughtful. But the episodes I remember most vividly are those where it’s very, very clear what the morally correct outcome is in regards to violating the Prime Directive (save them in “Homeward” and “Pen Pals”) and Picard is staunchly... against that. Which can make for excellent television and tension, but to be clear: I view those episodes as complex indictments of the Prime Directive. It’s not anti-colonialism, it’s upholding idealistic values over actual lives. Which is, uh, definitely a problem that exists in our current real world, so.
Anyways, I probably think about the benefits and detriments of the Prime Directive more than I should and am grateful for every aspect of this conversation.