While I have not read Young Children and Racial Justice by Jane Lane, I have done enough due diligence to say that the author believes that racism is learned behavior (Link to PDF of table of contents) . I'm not sure what to make of this UPI story about the book that suggests that Ms. Lane thinks that when kids say 'yuck' to food that is from outside of their culture they may be exhibiting racist behavior.
Certainly my own experience does not support this hypothesis. It's my observation that almost everyone is conservative when it comes to eating and prefers to eat that which they are used to eating and will initially reject the unfamiliar even when it is food that should be comfortably within the confines of their particular cultural envelop.
Mostly, I think, people tend to eat food that they believe is safe and that 'safe' food is that which that has been demonstrated to be safe over a longish period of repetitive consumption. So when a British kid, or adult for that matter, says 'yuck' to a bowl of curried goat he's rejecting the dish because he does not trust that it is 'safe' to eat and not because he suspects it was prepared by or symbolizes someone of a despised race.