Late to the party, but adding my two cents anyway
Sagging pants have nothing to do with homosexuality, in prisons or not. The link is made by people who want to denigrate those with saggy pants and feel that the best was to do so is by associating it with gay sex.
The style appears to have originated by being similar to what can be found in prisons (because belts aren’t often allowed), therefore wearing sagging pants could be used to try to seem tough and criminal. Whatever the origin, it’s no longer anything more than a style that has been adopted by a myriad of designers who don’t intend for it to mean anything other than more money in their pockets.
I’m not a big fan of the style and don’t really see a need in seeing everyone’s underpants; however, if the biggest problem I have with another person is the way they wear their pants, I may mention it, but I’ll also get over it. On the other hand, if I have other issues with someone who wears pants in a way I don’t like, I’m probably going to pick my battles and not worry too much about saggy pants.
I guess what I’m saying is this: If you want to use an argument which is not only based on disinformation but also essentially boils down to saying “OMG, ur so gay! Gross.”, it’s your prerogative, but doing so says a lot more about you than their pants say about them.
