What is the purpose of the film 'Isle of Dogs' ?

Call it a classic underdog story, or a boy-and-his-dog adventure, but the nudges Wes Anderson gave us about the nastier side of 1930s Europe in The Grand Budapest Hotel become a show and tell of current-day problems in Isle of Dogs. It is a film about fear of the other – it's just 'the other' here happen to be canines.

What is the movie Isle of Dogs about?

When, by executive decree, all the canine pets of Megasaki City are exiled to a vast garbage-dump called Trash Island, 12-year-old Atari sets off alone in a miniature Junior-Turbo Prop and flies across the river in search of his bodyguard-dog, Spots. There, with the assistance of a pack of newly-found mongrel friends, he begins an epic journey that will decide the fate and future of the entire Prefecture.

i think she wanted to protect her children from the extreme racism of the american south.