The idea that you cannot know something unless you are a certain person is call situational ethics. It is some bogus bit of psychobabble that has no real meaning in life, but the left has latched on to it with a furious grip and will never let go.
The irony is some people who believe in situational ethics find themselves going to psychiatrist and psychologists, who are different than they are, for understanding of whatever psychosis they are going through.