True Wagyu beef is found only in Japan. I'm not a big fan of Wikipedia but it has a simple breakdown about the history, cattle strains and how the Kobe beef association protects the names -- https://en.wikipedia.org/wiki/Kobe_beef

Whatever is marketed as Wagyu or Kobe beef here in the U.S. is not the same as that in Japan unless it is imported from there. It would be like saying you have a bottle of Champagne from Fort Wayne, Indiana. True Champagne is from the Champagne region of France. Whatever comes from Fort Wayne is sparkling beverage. Champagne, like Kobe, is a culturally protected name and designation, similar to some cheeses in Italy.

I've had the beef one of the guys sells here in North Alabama. It's good. I have two ribeyes in my fridge right now to grill tonight. Salt, pepper, fire, eat.