The law suit claims that Zootopia is copyright infringing because it has a story about anthropomorphic animals dealing with modern day issues, just like the Goldman's version of Zootopia. If that really is all it takes to sue someone, then I say the creators of Fritz the Cat, Rocko's Modern Life, Cats Don't Dance, BoJack Horseman, Samurai Pizza Cats, The Boy and the Beast, My Little Pony Friendship is Magic, and many others should be suing Goldman.