I've heard of people liking villains in shows, movies, and comics, but that is just plain crazy. Ursula is a villainous character from a Disney movie, not some kind metaphorical symbol of feminism rebelling against Patriarchy.
I'm a 90's kid, and I watched The Little Mermaid when it came out in theaters and again on VHS. At no point did I see any characters as someone I should aspire to be.
Why?
Because even as a kid I knew this was just a cartoon movie about a story of a Mermaid who wanted to be with some guy from shore. If by any chance there was supposed to be any message about Patriarchy and Feminism in the movie, I never caught it, and it went over my head.