The first paragraph is only true if you believe the supply is fixed (ie the elasticity on the extensive margin is zero). This is often a good way to teach economics because much of the math remains the same in a production environment but when you apply it in an environment it isn’t designed for it leads to fallacies like this one. Free markets and capitalism work precisely because it isn’t a zero sum game like this.

And your last two paragraphs are nonsensical, you are comparing the right to eat at a top end restaurant with the right to not have your kids kidnapped it’s downright laughable that you’d see such a moral equivalence.