raping an animal is still worse. Morally, killing animals is bad but it does provide a method of survival wether it’s moral or amoral, raping an animal is just a sick and twisted desire that is not only gross and unnatural but also does not provide any method for survival, so while no it’s not noble like your premise claims the argument to be it’s just seem as societally gross for a good reason.

From the animal’s perspective, you could argue rape continues their species and therefor is natural like killing, cannibalism etc. but that doesn’t change the dynamic between humans and animals. To the animal, dying is death and it’s something every living thing has to do, getting raped/rape is not