The Prime Directive in Star Trek

In Star Trek, there's a instruction that is Starfleet goes out, you're not to engage with any pre-warp drive technology civilization. What if we found a third half of earth right now, dude? Would you not go? I have to know they have different animals there. They got like kinds of ducks that nobody knows about yet. They have potatoes. Yeah, and you have to see the new kind of ducks. And so that's the problem here. Once you do this, it's done. And you can't undo that.