How did Kenneth Gormly motivate people to demonstrate against and stop dealing with corporations that participated in killing Blue Whales as noted in the nonfiction book, Unstoppable Us?

At the age of twelve, Kenneth Gormly saw a mother whale separated from her baby by whale hunters. In response, he wrote to his local newspaper about the experience, which motivated other people to demonstrate against and stop dealing with corporations that participated in killing Blue Whales.