A man went into thorough detail discussing the various moral/ethical issues involving the Prime Directive. This guy really gets into talking about this subject. At one point, I was watching this and thinking: "Dude, chill", but I understand the reason behind the enthusiasm: that while Star Trek may be "fake", it's steeped in real world symbolism. He uses all sorts of valid real world comparisons - from McCarthyism to Hitler to Vietnam to colonialism. Definitely an interesting discussion.
Warning: it is looooong. Like, 15 minutes long.