The truth is, so-called "environmental" NGOs encourage this behavior. Hatred like this can be very contagious and there's a market for creating a black and white world where people pay to feel like they are on the "white" side. By perpetuating racism like this, NGOs can bring in a lot of donations and volunteers.
Especially the kind of groups that believe Violence is an appropriate solution, such as Sea Shepherd.
I call this the Cycle of Hate.
Foment Racism --> Get $$$ --> Use $$$ to assault your target --> get in the media --> use media to foment racism --> rinse, wash, repeat.
It's very sad that many English-speaking media sources are willing to play along with this.
Particularly those media in Australia should be ashamed of themselves. By now they should know that Paul Watson is a compulsive liar who uses Australian Nationalism and WWII rhetoric to incite racism, yet they continue to publish his statements entirely unchecked.