We've had standard stuff (injustices et. al), we've had edgy if understandable stuff (god/gods/religion/whatevs), so I think I'll instead go with an unhinged take that I (mostly) only say for the memes:

Dolphins. They're fucking assholes. And like. They are assholes in much the same way we humans are: They aren't thoughtless critters just following basic survival rules. They are higher-brained creatures that are intelligent enough to be capable of choosing between kindness and cruelty, and they are absolutely cruel in a lot of occasions.

Now you may be wondering "does that mean you also think humans should go", to which I say no, because I happen to be human. So of course I'm rooting for my own team. Dolphins are competition for the spot of "intelligent species that engages in cruelty" and so they gotta go.