Gay is NOT against nature

[hotaru]

Any other activities other than a man and a women having sex is surely against nature.

Don't mistake culture and nature...

Though, yeah, the only thing that homosexuality works against is the participating individuals' biological fitness (as measured by reproductive success).

no, in animals u cannot see gayism(?);
i assure u with my exp..
moreover animals r not interested in killing its own genus,species..(most of themm...)but human r..

You might want to look into some articles/courses on animal behaviour... you're incorrect on both accounts.