Not quite. You ignored the important part of the answer. Let me refresh:
And I will add that the part that you*** purposefully ***ignore is the ethical issue. Putting something into your mouth or on your back has no significance, it is neutral–the act of eating or the act of wearing. However, when you become aware of an injustice, a cruelty, a wrong commited in the manufacture of your food or clothing, I believe that you are obliged to learn about the situation and act accordingly, which may mean that you have an ethical obligation to refrain from purchasing the item in the future.
You will note that in the Bible it is stated that wine is not evil. The wine itself is neutral. It is the abuse of it by the human that is wrong. Same applies to all other food and clothing. If you are mistreating animals to obtain meat–there is the wrong, the ethical issue. If you are subjecting animals to live as captives in tiny cages, to be killed to make a luxury fur coat, when there are many compassionate alternatives available, that do not require abusing animals–then there is your issue of ethics.
To eat or wear anything is neutral in and of itself. That does not mean than you can purchase items that are the products of abuse or cruelty, and still maintain a position of neutrality and be ethically free of contributing to the abuse/cruelty.
In the case of the blueberries, let’s say that you have been purchasing these blueberries from the farm in question. You had no idea that the owners of this farm were (illegally) using children to work and harvest the blueberries. You are completely innocent (ethically) from contributing to this problem by your purchases. But now that you know of this situation, if you continue to purchase these blueberries, you ***are ***culpable and can consider that your actions do have a contributory and ethical impact.