Whether you eat macs or sardines is strictly cultural.
It has absolutely nothing to do with taste.
We have been "trained" that it is a bait fish, many places think otherwise.
We don't eat horse meat in the U.S. because we were "trained". If you ever had smoked horse sausage links, to die for.
Beef is cool, right? Not to the 930 billion Indians.
So, keep your mind open.
Carp, now that is some good eats!