Women can be sexist and nonwhite people can be racist: being a member of a marginalized group unfortunately doesn’t inherently keep someone from perpetuating the discrimination against said group. It’s absolutely true that a lot of, and definitely the majority, of homophobic people are straight, but a lot of the terror-based homophobia stems from projection.
Is the Hilbert Hotel filled with cats en route to St. Ives who may or may not already be dead?