I’m assuming that you’re a liberal in need of basic education, so here’s my first lesson: the questions you asked have very little to do with “basic human rights” and are no doubt meant to persuade people that everyone’s entitled to free therapy for their stress.
Here’s a better framing of the fundamental question: What am I, as a total stranger, obliged to give you because you’re alive and in my presence, whether you’re the most interesting man in the world or an illegal alien who just shot a woman on the pier in San Francisco?
What I can’t live without has nothing to do with basic human rights. What someone I don’t know shouldn’t live without likewise is much broader than what that person is entitled to because of having a pulse.
Everyone needs water or they’ll die. You can’t live without water. However, that doesn’t mean you’re entitled to my water. If I’m walking down the street and you come and tell me that I’ve got to give you a sip of my bottle of water, I’m going to point you to the nearest toilet and tell you to drink out of that, dogs do it all the time.