I started as a volunteer coach of the Columbia wrestling team in 2010. It was in the early days of Athlete Ally, a nonprofit I launched that year to engage athletes in the fight for LGBT equality. Columbia seemed like a perfect fit for me—a progressive institution with strong student activism and social justice values. Our assistant coach at the time and eventual head coach, Carl Fronhofer, and his partner were outspoken LGBT allies. I remember seeing their NOH8 Campaign photo go up on Facebook and thinking to myself, "This will work out well."...