And the reason it’s terrible to force a human to be raped and have an unwanted pregnancy is because humans have free will/autonomy.
We don’t consider it rape to breed animals. We don’t consider them to have a choice in whether to be pregnant or not.
We don’t consider it kidnapping to take baby chicks. We do consider it kidnapping to steal baby humans.
We don’t consider it homicide to shoot and kill a dog. We do consider it homicide to shoot and kill a human.
The premise that matters for this analogy is whether there is free will/autonomy and a human being involved.