Also, as far as the bisexual/homosexual, Dad can't remember Bowie himself coming out and saying those things. I'd like to find the direct quotes on those things, since it could be possible that those were rumors of things, but not any actual thing he said.
As far as the glitter, he and Marc Bolan pretty much are the originator's of the genre, and yes, make up and high heels on boys, but it wasn't some sort of early gay pride thing, and no worse than the hippies and free love in terms of encouraging sexual experimentation. Plus, the US never did glitter like the Brits, so the full impact wasn't really seen here, but think teenage girls lined up to see the likes of NSync and The Backstreet Boys, not gay orgys in the streets.