When Fanfic Makes More Sense Than Canon
So this is part of a fanfiction but it makes SO MUCH SENSE:
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The familiar statistic regarding gays and lesbians is one in ten. Applied to the original 200 members of the expedition, this would mean a gay and lesbian population of twenty. But Atlantis was by no means a typical social order, its members having been carefully screened by the SGC. Because of the high-risk nature of the Atlantis mission, preference was given to those with few or no family ties. Not one of the original 200 expedition members was married; not one had had children. 82 percent had lost at least one parent; 59 percent had lost both. The goal was to select relatively unattached people in case the entire expedition was lost or killed, but there were unintended consequences. For one thing, the screening process produced a coterie of courageous, stubborn, self-motivated risk-takers who didn't belong anywhere in particular—or, in other words, a group of natural revolutionaries. But it also served as a filter for gays and lesbians, so we should not be surprised to discover that members of the Atlantis expedition swung heavily toward the top half of the Kinsey scale, with some estimates claiming that more than 65 percent of the population were bisexual or demonstrated clear homosexual tendencies.