Threshold for boycotting companies

At what point do Muslims have a moral and religious obligation to boycott a company. To clarify, most corporations or companies do things that are immoral. How do we decide what is bad enough that we boycott it? Like for example, [this](https://web.stanford.edu/class/e297c/trade_environment/wheeling/hnike.html) articles describes the Nike controversy, highlighting very bad working conditions for its workers. Would I be morally AND religiously obligated to boycott Nike? I'm finding that my buying power is diminishing greatly with the possible boycotts I'm obligated to perform.