Good people can turn to bad people when they put bad things in their body. So are you telling us that the consumption of poisons won't adversely affect the chemistry of the brain over time.
Personally, I don't buy that but that's just my opinion. I do know this, in the society inwhich we live, the "I drank malt liqour" or "I ate too much pork" will not hold water as a defense in a court of law. Personally, I don't want to live in a society where someone can do wrong to me or my family then use something like that as an excuse to downplay their responsibility for their actions.
People get drunk, stoned, wasted, etc, everyday. It negatively effects the chemistry of their brain accutely, they do stuff that they normally would not do, say things they normally would not say, but yet they are responsible for those things that they do, those words they say, just as they should be.
The question of this thread was rather foods or drinks are being DESIGNED to break down our protective and nurturing instincts and to MAKE us more aggressive? First off, businesses are in business for profit, to make money. So they are going to make it as cheaply as they can or as addictively as they can. If making it cheap makes it more dangerous, they could care less. If spending a little more makes it more addictive, they are going to do it. I don't think Schlitz Malt liqour gives a hoot if their product makes you fat, aggressive, melow, or ignorant, all they care about is that it makes you buy it. AND, if Black folks happen to like it more than White folks, that's where they are going to focus their marketing.
Secondly as far as food is concerned, the places I shop for food are frequented by as many or more whites then Blacks. They would have to DESIGN a product that effects Blacks but not effect whites or they would have to focus that DESIGN at the population in general rather than attempt to reach just Black people.