It doesnt have to do with being socially progressive at all. It has to do with radically changing a character that many people like and who has a specific purpose, just so that he/she can appease your tastes. It's the equivalent of having Batwoman be black and face racism, when her schtick is gay discrimination. If you want to read about black rights, you dont have to ask them to change Batwoman, you just need to pick up another comic book that deals with it.
WW cant serve her role as a feminist icon when she doesnt have any contact with men. It would amount to "if you want equality, just do away with men altogether. Lucky me, i dont even have a father!" It's not as simple for her, as it is with turning Wally West black or gay. It's equally as cheap though.
So either you are trolling and messing around, or you really are prejudiced yourself and cant see the actual reason that people dont like this.