Among animals there is no homosexuality. It is only among humans who use sight for sexual stimulation. Animals use smell.
When the female goes into estrus, she produces an odor that attracts all males in the area who then fight it out. If they attempt to breed her too soon, she will fight them off till she is at her estrus height, then allow the male to do the job. Then the smell fades away.
I've raised cattle, horses, hogs, dogs, cats. It is always the same. For there to be a GAY DOG, another male dog has to produce the smell of estrus. Since they don't have the equipment, they can't produce the scent.
Only HUMANS use sight. Real men like to look at shapely women, not other men. If men were like animals, Playboy would come with a "scratch and sniff" card instead of a centerfold. That makes gays perverts. You can't make them accepted just by changing the medical term for perversion.