Having sex with an animal is far better. For various reasons:

 They don’t resemble a human, which could resemble a guy or a girl, and a girl could also resemble a guy by the fact she’s HUMAN.

 They are completely unrelated to you. That means you can’t fuck it only to find out it was your cousin all along (rookie mistake of mine)

 Depending on the animal, you may not be able to tell what gender it is, which means you are indirectly unaware of its chromosomes. That being said, much like a glory hole, you aren’t aware of what you’re fucking; it’s the intention that matters (also explains why traps aren’t gay).

 Like the first point: it’s not a human. It’s not the same species as you. Fucking someone the same species as you is as gay as fucking someone the same gender as you, and that’s gay AF.

 It can’t consent. While at first this may seem like a downside, you must realize that it also can’t object, therefore automatically consenting by not protesting at all against your advances. Animals don’t complain, why should you?

 You can’t impregnate it. This one’s easy to understand. You don’t have to worry about spending on contraceptive methods, most of which have to be re-bought anyway after use. You can fuck it while drunk and make no mistakes. You won’t have to be stuck being a crotch gremlin’s slave for 18 years.

 Variety. There are millions if not billions of species around the world, all of which vary greatly from one another. Many holes, many feelings, some tight, some warm, some cold, some slimy, you name it they got it. Not only that, but also, of course, the appearence of the animal itself. Now can you say the same about women? They’re all limited to a single species.

 Commitment. You don’t have to commit to a relationship with them at all, nor do you have to buy expensive garments for them to SLOWLY start liking you. You don’t have to be good at romance or anything, nor do you have to worry about cheating on your mate, nor future plans and marriage., all you need to do is GET IN THERE AND GET ‘ER DONE.

 Kinky. Dude, this shit is kinky AF. You wouldn’t believe how many people would kill to get a chance to fuck like this, much less with all these exotic creatures. You want taboo? You’re gonna get your taboo. Experience the finest kinks to your heart’s content.

 Judgement. No one will judge you if they know the animal’s true gender. Whether you fucked a male or a female, you’re equally fucked. You won’t be called gay for giving it to a horse neither taking it from them. Probably gonna get arrested, or put down or something, but hey, it is what it is, just like that dog when it couldn’t walk on its back legs after I was done.