Why do I always get blank stares from the non-black people that I tell to go back to Africa?

It's just something that I tell everyone. Telling a Human of any race to go back to Africa is no different from telling a Cane Toad in Australia to go back to South America, or telling a Burmese Python in Florida to go back to Asia, or telling an Indian Mongoose in Hawaii to go back to Asia, or telling a European Starling in America to go back to Europe, or telling a Raccoon in Europe to go back to North America.