Animals do not have 'homosexual' offspring. You are transfering and attributing human behaviors onto animals. That is called 'anthropomorphism', the same human trait that tries to see faces shapes in inanimate objects.
Animals are not humans and don't think. They don't have human attractions. Animals are mindless rutting beasts. They hump because it is their biological prime directive. Rhinoceri will hump cars hump hump. Dogs hump coffee table legs..that doesn't make them attracted to coffee tables, they are merely mindless rutting beasts.
Hump hump hump. Turtles hump rocks. Rabbits will hump dead rabbits. They are not necrophiliacs. They are mindless rutting beasts.
I don't know if its in your best interests to equate human homosexuals with mindlessly rutting beasts who have no capacity to think, and no soul..
oh….
…wait…
nvm