The current trade war with Europe over bananas, the looming trade war with Europe over hormones used in raising animals, and genetically modified plants and the incipient trade war with Canada over magazines all have a common denominator. The French and British histories of giving preference to their former colonies in the Caribbean justify, in their minds, keeping out the better bananas of Central America. European fears of animals grown with hormones justify keeping out U.S. meat. This is the case even though scientific investigative committees set up in Europe and America have concluded that there are no dangers. Fears, even if unfounded, justify keeping products out.
Sociology dominates science.
Similarly, fears of genetically modified plants and animals are cited. But there's no difference between genetically modified plants and animals, and those modified through traditional inbreeding and crossbreeding. The modern process is only faster and more flexible than traditional methods, with greater scope for improved outcomes. We all have been eating hybrid corn for a long time. Since all pure breed dogs are man-made creatures, consistency would demand that all such dogs be deported from Europe.