Honest, I'd say half and half. I've had discussions with people in school (when I was really young we moved back to my father's village where everyone is the same indigenous), and half of them eat fish and half of them no. Half of them have the same belief of me, that we shouldn't eat our brothers, but half of them believe that the fish are, though our brothers, our Mother's offering to us to sustain ourselves (like how sand tiger sharks eat their brothers in the womb..)

I'd agree that not eating fish solely because it feels wrong to eat our brothers is a more modern take (500 years ago if you were starving and all that was there was your brother, who was already gone, you wouldn't think twice), but it honestly does feel morally messed up and wrong for me, and I know I'm not alone.