[A non-Muslim points out that homosexuality is found in animals]

they look at themselves as having evolved from animals, thus, it makes sense for them to look at animal behavior as what they should emulate.

they copulate with each other without marriage, just like animals
their women run around naked, in heat, like animals
their men sit around basking in the shade while the women work, like animals
their children dont know who their fathers are, like animals
their men have no gheera, like animals

so why are you surprised that he looks to the behavior of animals to be his example?