Culture is culture, but it is not "DNA." To suggest something is in your DNA is to suggest that it is something inherent that cannot be overcome. Which is, of course, bull****. I think some people (not talking about anyone specific) use "It's in my DNA" as a license to be an *******. And if you believe that you can't help the way you are due to your race/ethnicity, then it's a short trip to arrive at the conclusion that the same holds true for other races/ethnicity.
Short tempers and easily held grudges are no reason to thump your chest, and for those who believe, I doubt that the "DNA" excuse is gonna fly with St. Peter.
THANK YOU! If DNA is an excuse, then its an excuse for everything from murder to lying and cheating. Only the animals have DNA as an excuse. The ability to rise above our nature-- to reason, to ponder morality-- it what separates us from animals.
If you believe that "in my DNA" nonsense sincerely, you are basically saying you are no better than any random animal. I'm German. I'm stubborn. But it's not because I'm German, nor would it be acceptable if it was.