Take someone's favorite food, let's say it's ice cream. So does a candy apple. The fact is they will never succeed. There is no set of qualities that can be given which isolates only ice cream as the liked object. They may very well then punch you very hard, but that is immaterial here, although it hurts in real life.
Logic is irrelevent.
Presumably there was something, sometime which caused this neural connection to happen, and there may have been logic involved there. Equally likely, there may have been nothing but primary process conditioning. So I can't rightfully blame people for failing to satisfactorily articulate why they like something, although I can press charges for that punch in the face. Having argued all this, it seems I'll have to concede that there is a genuine connection between the people who don't appear to have any plausible reason for it. Of course, the real downside to this is that means these people have succeeded in finding genuine connections.