Not worth the debate. Libertarianism is where nihilism meets teleology. Reminds me of that famous Walter line from The Big Lebowski: "Fair? Who's the fucking nihilists here?"
It was just a dumb joke about how it's all dog-eat-dog when it comes to getting what you want then all "IT'S NOT FAIR" when it comes to paying any cost for anything that not an explicit fee-for-good/service agreement. Tear it apart all you want...not something I'm willing to defend :)
Market advocates talk about competition a lot, but a dogfight isn't the best analogy. It's more of a competition for opportunities to cooperate. Costco makes you an offer, Amazon makes you an offer, you choose who you want to interact with. Many critics who savage Amazon also shop there, suggesting a bit of virtue signaling in their criticisms.