I think this is a case of the two sides both being bad apples and fully deserving each other.
The whole hunts are themselves a blatant abuse of name of science, and even hunting whales for meat is more about pride and hubris rather than rational economic need.
Very few people in Japan eat whale meat these days, and fewer actually like the taste. The whole enterprise is almost retarded in that there is so little genuine commercial demand for whale meat that the whalers had use connections and back room deals to make it part of school meals to avoid a mountain of wasted whale meat. But whale meat is actually pretty high in mercury and other heavy metals, so they are pretty much poisoning countless kids just so they can justify this pointless waste of life.
The anti hunt protestors are your typical animal rights fanatics who seem to value animals more than their fellow humans, and who are so far up their irony towers with righteous indignation and fake moral superiority they think they themselves can do no wrong, and that any action they take is either justified, or the target of their attacks deserve whatever they might get.
Both lots are perfect examples of people with far more money and time on their hands than sense in their heads, and the world be a far better place if they quit their pigheaded pursuits and devoted their time, resources and energy to more worthy goals that actually matter to people other than themselves.