The Japanese are indigenous to Japan and have been hunting whales for a thousand years and maybe over ten thousand[1] so I guess we don’t get to tell them what they can and can’t eat either.
1: https://www.wired.com/2015/12/japanese-barely-eat-whale-whal...
2: https://www.japantimes.co.jp/news/2019/01/11/business/future...