SR got mostly positive reviews from the critics:
http://www.metacritic.com/movie/superman-returns
http://www.rottentomatoes.com/m/superman_returns/
And it made more $ at the BO than Batman Begins WW. It crearly tells me that it had an audience. It made more $ than many Marvel films too, but people call those movies successful but SR was not? Yes I know the production budget was bigger, but general audiences don't care or know about that.
But yeah continue with your hyperbole that everybody hated the film.. it sounds like WB believed that hype, sadly.