Dammit, Bob, you went there.
As a bisexual woman that can put her hand down anyone's pants and be happy with what I find, I have no problem with Joel Schumacher being "gay", but to imply that "gay sensibilities" are directly tied to stupid movie decisions, gaudy color schemes, awful movie puns, badly miscast actors, juvenile and puerile camp and overacting, ridiculous rubber nipples, toy-driven movie design, and all-round bad movie making is, well, a bit offensive.
The problems with the film are there whether the director was gay or not. The fact that he happened to be gay is completely and entirely inconsequential to the quality of the film (and that quality is BAAAAD). If some stupid-ass teenager decides to say "the film is gay", you really need to know that teenagers don't mean half the crap they say literally. C'mon, Bob, I was there too, and the film is totally "gay" in the teenage meaning that it is "lame".
And I'll also disagree with you on another thing. Batman & Robin IS "so bad it's good". Seriously. Where have you been for the last decade and a half? It is often featured alongside Street Fighter: The Movie and The Room as hilarious riff-track terrible movies. People love to mock the film. It is completely and utterly a "so bad it's good" film and has been for over a decade.
And that's the problem. See, Bob, as much hate as Batman & Robin gets, it was not a box office failure by any means. It was a success, albeit not one as big as Batman Forever, and it's merchandising made more than the entire films budget by two-fold. Batman & Robin, by the numbers, was never a failure. However, the backlash against the film, the dislike, the scorn, and even the shame of the actors involved (George Clooney has stated he will refund the money of anyone who saw the film if they approach him on the street), coupled with the critical success of the dark and gritty Batman: Animated Series, made Warner Bros. look awful by comparison.
... And that reminds me...
... Where the hell is your "Batman Revisited" of "Batman: Mask of the Phantasm", which many folks would saw is actually the best theatrical Batman movie ever made? You can't do a revisited over the Batman movies and not mention the highly acclaimed animated movie. You just can't.