Blood Type Personality Myth

In Japan Blood Type is traditionally viewed similar to your horoscope in that it helps determine personality. I personally think the horoscope and even the idea that Blood type affects your personality is nonsense. It’s the Barnum Affect, right? I’m not going to be tricked by nonsense. However, my blood type is AB Negative and what it says about AB blood sounds a lot more like me than I expected. The strengths and the weaknesses. AB blood is rare so I would expect most ENTPs not to have it. I am convinced it is a total coincidence, but I’m curious what your blood type is? What do you guys think? It’s bogus, right?