"No. Obviously not. That is how you kill a chicken."

That doesn't explain how it isn't torture. In fact your statement is irrelevant.

"That is why it is OK to give a capuchin monkey AIDS"

Some would disagree with that.

"animals do not have rights in themselves."

But humans do?

"Men who have been circumcised don't seem to have significant complaints."

Maybe you are right. Most of them, however, can't really compare their experience with that of being uncut since they had the procedure performed so young.