In reply to:
If this song is about Bowie accepting his bisexuality, then why, during the Lets Dance era, did he so vehemently deny it?
Laughing Gnoome's post went just whee over my head, so let me try to offer another explanation: it's a hidden message. Just like Ricochet is considered by many to be Bowie's apology to his old fans for going so commercial (here), Modern Love could be a hidden message to his old fans, that he actually still is bisexual, though he denies it. Did I say that in the first post allready? I have a feeling I'm repeating myself here.