Honestly of all the marine animals, dolphins are what i would like the most, simply because they are the most common one to be held outside of an aquarium, but i do understand the distaste, eventhough sometimes it gets rediculous.
I once got into a discussion with a self proclaimed "environmentalist" and "whale specalist" about the dolphins in the zoo duisburg, because i criticized some one i knew for demonstrating in front of the zoo with PETA. Many interesting claims where made, disregarding every biological, science or just general logic.
It was really embarassing honestly, and i just shake my head about these groups.
In the end they help no one with their aimless activism, often just making an embarassment of themself and having nothing to back their claim then "morality" and "ethics" with a total disregard for other factors. I honestly wish such people would stop, not only because they are wasting their time, but because they are activly spreading misinformation and shine a bad light on those groups, that actually have a point and do their best to make a change for the better.
The worst part about it all was that the guys actually presented himself as part of a serious group, which i highly doubt, but if they were, im scared about how little they knew about what they are doing. For example, they didnt knew that you could easily find basicly everything about the helding of the dolphins and the EAZA standards on the website of the zoo, everything from what they had to breakfast, over what medicine they take to a detailed multiple slides long pdf explaining how the filter system works.
Stuff like that honestly scares me, but i hope its just that im comming from a big city with a lot of "woke" and "hip" folk, who often pull such stupid stunts like a vegan demo in the middle of the city where they were kicking dogs and asking passerby if they felt bad for the dog but why not for the meat they eat. That one was thankfully quickly taken care of by the police, but it just baffles me how so many "pro animal" groups take part of uneducational animal cruelty. Its really shocking honestly