I believe the "arbitrary zodiac" claim is made toward people that attempt to extrapolate behavior out of mbti types. For example, "INFJs are strong leaders" is

I believe the "arbitrary zodiac" claim is made toward people that attempt to extrapolate behavior out of mbti types. For example, "INFJs are strong leaders" is as arbitrary as saying "aquarius's are strong leaders" The problem i, and many other people find with the mbti is that most of its users, and even scientific apologists, can't help but fall into the trap of categorizing people into perceived behavioral trends based on their types, which is at best, scientifically invalid, and at worse, harmful.