If that were to happen, we'd be genetically purebred furries set aside from the completely human population on earth. Ya sure you want to reject your humanity and literally become an animal anyway?
And as a side note, even if that were scientifically---more specifically "biologically"---valid and possible, we'd be ostracized and regarded as aliens. Also, there's no such thing as "utopia" in this fallen world (James 4:1-10), what would you legislate in your constitution