Commercial fishing kills 300k cetaceans annually. [1] For contrast, at the peak of Japanese whaling, less than 40k were killed per annum[2]
China alone, in 2010, had 8.8 million metric tons of mismanaged plastic waste came from China with an estimated 3.53 million metric tons of it ending up in the ocean. [3] What happens when cetaceans lose their only environment to pollution?
I'm a conservationist, myself, but I feel so much energy of conservationists is misdirected at things of little consequence (banning plastic straws is an international debate among first world countries), whereas many of the big issues (unsustainable fossil fuel use and farming techniques) is ignored.
1. http://wwf.panda.org/wwf_news/?281850/Bycatch-is-the-biggest...
2. https://www.organicauthority.com/energetic-health/commercial...
3. https://www.statista.com/chart/12211/the-countries-polluting...