The point is that the "most people wouldn't like this" test fails.

It's just not true that always giving to one person and never giving to another person is a situation that most people would, as a rule, object to Most people would sometimes oibject, and sometimes not, depending on circumstances--they'd object when you're giving toys such as balloons, but they won't object when you're giving necessities such as giving food to the hungry.

Pointing out an additional situation when most people would object (giving food when the food is not a necessity) doesn't change this.