Isn’t this analogy wrong? The question implied is: if shoplifting were legal and if some people shoplifted to feed hungry babies, should we make shoplifting illegal?
If it weren't wrong, it would not be an analogy. Most intelligent people will realize that the current state of the law is irrelevant, but if you really can't get past that:
If shoplifting were undesirable and if some people shoplifted to feed hungry babies, is shoplifting then desirable?
