To me, as a libertarian, a right is something that every human inherently has by virtue of their birth.
That's
your simplistic definition. I think in the richest country in the world every child or at least every child that is a citizen or legal resident has a right to
basic healthcare, water, clothing, shelter, food, education, and safety. Do you disagree? And if so what kind of animal are you?
Providing some of those things to every child may be impractical at times. But that doesn't mean it shouldn't be a goal. I mean what is the goal of life really? To live in a big house while a child dies of an easily preventable disease because you don't want to pay $100 a year more in taxes? My advice to you and people like you is to move to libertarian third world countries where you can bribe your way to government noninterference and low taxation. Let me know how nice it is to drive to work in you bullet proof Benz while staring out the window at starving children. C'mon man. People have tried all these experiments already. The planet is littered with the results.