One point I'd make is that you are looking at the mores of modern society, specifically modern western society, and using them as universal standards of human behaviour.
Were the vikings being failures when they raped and pillaged? Why has rape such a long history as a commonly used tool of terror during wars? Why does the bible consider rape to be such an insignificant act that as long as the victim is unmarried the only punishment is 50 silver pieces and having to marry her?
If you are trying to say that rape isn't common in human societies then you are talking rubbish. You are also talking rubbish when you say that science excludes 'homo sapiens from conducting such behaviour'. There is plenty of scientific research, of variable merit, on the concept that rape is so common partly because it has historically been a successful evolutionary strategy. There is also plenty of justification for suggesting that murder and polygamy can be succesful evolutionary strategies in people as well as any other animal. But laws aren't generally written on the basis of scientific research or what might be considered a successful evolutionary strategy.
Your main argument seems to be one of stupidity, when you ask why don't we imprison animals that rape and kill then the obvious answer is, 'we do' if they do these things to humans. Animals which kill humans are generally killed, were you not aware of this? I'm not aware of any cases of animals raping humans, but if they did I'm sure they would be put down as well.
Would you also advocate that we arrest any humans who eat meat for cannibalism? Your main argument seems to be that you can't tell the difference between humans and other animals, and also that you like to just make shit up about what Atheists/Evolutionists should believe based on your own messed up ideas.
The only people who ever seem to advocate using animal behaviour as a yard stick for how humans should behave are creationists/theists who wish to construct a strawman to represent the beliefs of atheists/evolutionists. So well done for carrying on a grand tradition of mendacious bullshit.