Somrone's trying to jack up prices to sell

So? They use more fried food. The french put so much butter on everything it's not even funny. A croissant is litterrally 1:1 dough and butter. The italians and olive oil. Canadians with poutine and mapple syrup. Every culture has some good and some bad elements to it.

Plus you do not have to cook the same 3 things for the rest of your life, no matter where you are from. The world is big, it's a choice to eat only bad or fast food. It can still be your culture, but restricting yourself to a certain diet is a choice, not an obligation.

So are you. You are literally claiming that bad food habits cannot be changed, just because it was started in childhood. In my humble opinion, it's extremely racist to claim blacks don't have the willpower to break bad eating habits, no matter their education and wealth.