Given the amount of loud, flamboyant, and extremely obvious events that occur as part of gay culture, a day of silence seems somewhat at odds with the concept. I was also under the impression that that fight was effectively done with. After all, gay marriage is an openly accepted phenomena internationally, many film and tv icons are now openly gay, some actively capitalise on their lifestyle/proclivities, and pretty much everyone knows that homophobia is a bad thing. I'd say thats a pretty good result for all of 30 years work. I suspect there are people getting oppressed in other ways and for other reasons that could use the help of the powerful gay rights lobby.
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"There is a time when the operation of the machine becomes so odious, makes you so sick at heart,
that you can't take part" [Mario Savo, 1964]