These data are fascinating, but I would've liked more of the socioeconomic skew. I grew up in lower middle class area, and I can recall many gay men that didn't pursue academics beyond high school. They mostly went on to service industry jobs. Even after I graduated, the gay men I met after college at bar environments mostly worked unskilled jobs, and due to my location, many were current/former military. It could be that gays from better off backgrounds have a slightly higher propensity to complete college.