cruelty would be doing it just to cause suffering. suffering is incidental, not the point. if we produced everything using the exact same processes without suffering, would you find that acceptable? i think everyone would say that's preferrential.
Raping someone not to cause them suffering but to gain something out of it is (pleasure, or a baby) is unethical. Something unnecessary that causes suffering doesn't need to be done for the express purpose of causing a being suffering in order to be unethical.
That's funny, notice I never said artificial insemination was rape. I guess that's something you assumed given that it is very comparable to rape, and is undoubtedly a sexual violation, regardless of its intention (which is ultimately unnecessary). And it's not a veterinary procedure, it's a farming practice with the end goal of producing a product to sell that the animal is exploited for.
I was using rape as an example of a practice that causes suffering and which is unethical despite the fact that causing suffering isn't the motivation for doing it (necessarily), in response to you trying to argue that something that causes suffering isn't unethical if suffering isn't the intention. If something causes unnecessary suffering, it's unethical, regardless of the intention.
I literally never said it was rape. I previously said it was a sexual violation, but I genuinely used the example of raping a human for a different reason, as an example of a practice that is unethical despite the fact it may not be intended to cause suffering (but does, and is unnecessary) If you can't cop that, that's your problem.