This type of discourse seem to be more focused on affirming how this can't possibly work than on genuine interest in discussing the issue.
Imagine I propose that everyone should get access to free universal healthcare or education. You can make all these kinds of questions to defend how these things can't possible work and yet they do. Are these "perfect" in all instances? Of course not, but they are a net positive and much better than nothing.
The same can be implemented for the basic necessities. The best way to figure out what the really important questions are, is to implement a system and iterate on it.
Imagine I propose that everyone should get access to free universal healthcare or education. You can make all these kinds of questions to defend how these things can't possible work and yet they do. Are these "perfect" in all instances? Of course not, but they are a net positive and much better than nothing.
The same can be implemented for the basic necessities. The best way to figure out what the really important questions are, is to implement a system and iterate on it.