While the number of actual whalers in the world has declined to just a handful of shitty people, we need to talk about what we're doing to sharks and octopuses. To say nothing of the newest research and discoveries of how complex fish broadly actually are, with complicated social structures, even languages and the capacity to feel and experience pain.
We need lab-grown proteins and need to put an end to farming sentient creatures in hellish conditions to slaughter and consume them.
Unfortunately, the chances of that becoming normal in the next several centuries is pretty slim. If our solution to the Fermi-Paradox is quarantine, we're not being let out any time soon.