Nobody said preference = requirement. You have to clarify what preference, and for what purpose. Example: In order to get by car to Los Angeles from New York, it is universally preferable (required) to head to the west.
Bwahahahaha you can't be serious.. Do you not see you just contradicted yourself while pretended that preference = requirement when you said it is universally preferable(required) to head west? It's not preferable, it's required! Period.
Look, I see Stef confused you about the meaning of both words so I'll explain them to you. Pay attention!
A preference expresses your desire to pick something from either group A over something in group B (from options: west AND east) but INCLUDES both groups. A requirement expresses the only choice available between group A or group B and excludes the one over the other(from options: west OR east).
For example if you say you prefer going west over east, you are saying you'd like to go west most of the time but not necessarily always. Sometimes you might reluctantly go east.
But if you say you are required to go west, then you are saying you don't have a choice but must always go west. East isn't an option. And this is a simple logical operation of AND and OR. What Stef and you are doing is pretending AND = OR, 2+2=5 5=4, preference = requirement. As soon as you do that anything else you utter is invalid.
Therefor saying "In order to get by car to Los Angeles from New York, it is universally preferable (required) to head to the west." IS COMPLETE AND UTTER NONSENSE.
The correct example would be "In order to get by car to Los Angeles from New York, it is required to head to the west." Or you could say "In order to get by car anywhere from New York, it is preferable to head to the west as opposed to south or north even though you still might go those directions.
It's truly astonishing over how many people Stef manages to hold this spell where he convinced them that somehow, because he pretended it's true, preference = requirement.
p.s.: So I want get accused of dodging anything:
A) Yes I have a preference for truth, but it's my own subjective preference.. just because I have it, it doesn't mean every single human being has it, ask any liar.
B) No, in order to find the truth(a subjective goal) using logic and evidence is REQUIRED behavior, just as in order to stay alive as a human being, eating is a REQUIRED behavior.
C) Just because anyone wouldn't take me seriously, doesn't mean I'd never prefer a lie over the truth, I mean come on, this is kindergarten stuff