While it is next to impossible to be completely aware of every company's ethical practices, I make sure not to support any of those I am aware of (this goes for clothing, food, etc.).
It is the nature of the manufacturing world that the vast majority of our consumables are produced unethically, I realize that, but there is a difference between purchasing clothes (a necessity) and actively promoting said brands.
Agreed. That is why I buy knock off jersey's that are made just as good as the real thing but for 10% of the price. Come at me big business.