People spend their lives doing research and live testing for most animal species, once you stop treating science like a myth we can continue talking.
Rams horns absorbs the shock and the length of the horns lessens the force by the time it reaches the head(play the video at 0.25 speed and you see them angle their heads so the top of the horns takes the impact), and have a mechanism to slow blood flow from their head to body that fills the vascular trees in their brains and prevents the brain from being damaged.
Just give up you are embarrassing yourself.
Other reasons that cause animals to behave in homosexual ways: affection, pair bonding, parenting. They understand it's the same-sex quit trying to deny it.