I am convinced that in a non-sexist society, Gentle would be at least as famous and praised as Wolfe.

YES.

Though I actually think the Urth of the New Sun sequence is something not a lot of people have actually read, which imo is a real shame because it's so awesome and brain-breaking. IDK what people who haven't read it have read of Gene Wolfe--maybe his horribly sexist short stories/other books?