They're countering the argument that homosexuality isn't natural. They're not saying that we should embrace homosexuality only because animals can be homosexual too.
How is having **** or oral *** wrong? What's wrong about having *** for pleasure? Who is being harmed by having *** for pleasure?
The queer community says homosexuality is found in specific species, so it's natural if humans engage in same gender sexual intercourse, because it's natural in non-humanoid species, and that is literally the same thing as saying humans should accept and act like animals. That is unacceptable.
Sodomizing is not pleasure and it's absolutely harmful. From a liberty point of view, You can sodomize with whoever you like, as long as you do it privately. You can share diseases by sodomizing, if you like, I don't care. My problem with queers is they sodomize each other in public, and shove their disgusting ideology down the throat of the public, and want to force everyone else believe what they do is fine and natural. I'm going to ask your questions against you this time.
1). How is having *** between adult and child harming you?
2). How does polygamy harmful to you?
3). How is *** between human and animals harmful to you?
4). How is *** between family members harmful to you?
Do you believe what I asked you is right or wrong? Do you think, because an intersexual act doesn't harm, should mean that it's fine? No. As a society, we must say what is right and what is wrong, and we must ban something that is dangerous to society as a whole. That is why paedophilia is wrong, despite that it's not harmful to you or me. It's not the idea of whether it's harmful to you or me, the idea is that it's wrong and it should be lawful.
