colonialist attitudes toward native fishes were rooted in elements of racism and sexism

This is how they get around actually having to make a concrete claim and defend it.

Anyone with two functioning brain cells is going to realize that people are generally the most comfortable with foods they're familiar with, and that those European settlers were no exception.

Never mind the fact that the fish those Europeans did like were also native, they were simply the most similar to what was found in Europe. Never mind that surely European women almost certainly also preferred those fish. This isn't about logic, it's about throwing out "-isms" until you get your way.