Sure, because if I was looking to control the human population, the first group I'd target would be gay men.
Someone in Belgium probably had sex with an African immigrant who had just come back from a visit to Africa. I have always wondered why there don't exist saunas where women go to have sex with each other. Weaker sex drive? Obvious gender differences? And we all know the only reason heterosexual men aren't lining up to get into these saunas is because the women aren't there.