First of all we need to remember that when you talk about collective concepts those are not individuals but rather they’re sums of individuals they’re not individuals themselves, there’s no individual called market in which you can find all people who’s willing to trade. For instance the market it’s not a trade partner, you wouldn’t sign a contract with the market or call the market your friend. Individual races aren’t individuals, when some individual inside the race makes a bad deal or lies or steals or does something that is punishment worthy, the whole race will not get punished but rather the individual, collective terms as market, races, religions, nations aren’t capable of any kind of action or free will and with that they also don’t deserve the rights (Profits, being ought either money or moral responsibilities ) nor the obligations( Must be reciprocal, must not lie nor deceive in its trades, must be held responsible of its own actions) rather these terms are a measurement (a sum) of direction a pointer to the directions which the individuals are taking they’re not good or bad nor fool nor wise because these descriptions are descriptions of the actions of the individuals and not the actions of the market because market doesn’t have actions. The market is not an individual but rather the sum of people willing to trade we can say that an individual is part of the market but we can’t say that the market is part of an individual; why is that; well if an individual makes a decisions this decision will affect more or less the market and the direction it points, but whatever the decision this individual does the market won’t have the choice of being affected or not by this decision( because as we say before the market is not capable of decision) the market will be affected by the descion of this individual now the market may change its direction pointer and some people might think that it is wise to follow such pointer but they will be choosing to follow that pointer and in the same way they can chose not to.
Now this will totally operate the same way in a small community even in a community of two the community will be affected more or less by the action of 1 of its 2 integrants but the community will not act to affect the integrants with in itself.
The example you put out from Wikipedia is not about free market if someone say he would do something in exchange of you doing something else but he lies and doesn’t do it you can hardly call that a trade but rather a theft. Now when you say where getting benefits from individual races if we are discriminating those races then we aren’t trading with them where’s the benefit we’re getting?
Now you could say something like “well what if it’s contribution helps you because it arrives at you through other people even if you’re not trading with them directly” I’ll say in that case they already got their benefit
Example:
If you were an electrician whose business runs from producing electricity through fossil fuel and let’s say you had a black oil provider from a country like south Africa and let’s say before you had this oil provider your electricity was a lot more expensive and now that you have this black men from south Africa proving you with oil you can lower the prices of your electricity by 75%. Now let’s say I’m a person who wouldn’t do trades with black people for whatever reason and I’m also happen to be one of your clients and thus my electricity bill also goes down 75% then if it weren’t because of you making this business with the south African men I wouldn’t get the benefit of the reduction of my bill yet I’m not the only beneficiated the African men would get it’s benefit from selling more oil, you would get your benefit by the increment in clients due to the lowered price and I will get my benefit and will benefit us all. But what you cannot say is that because of the voluntarily arrangement of you and the south African men I ought to the black people of our town to provide them with a benefit because I received one from another individual whom only happens to also be black.