you are arbitrarily dictating what is natural and what is not
No i am not. I am merely pointing out what is true of nature in reality according to my experience. You are merely pointing out what is dictated to you by naturalism, and you are willing to swallow it because it suits you to swallow it simply because it serves your own personal invented end and agenda. I seek things that benefit me to, but I accept philosophical positions according to that which ultimately maximizes the good and welfare of human beings as a whole in respect of that which is reasonable and at the very least does not contradict human experience. The philosophical positions we choose can reflect our agenda and moral standing as people as-well as our ability to reason.
and then considering nature the moral standard without any explanation as to why.
Thankfully there are people in existence whom value the greater good of humanity as a whole (that which is greater then ones self interests), “
blood donors” included. This is a debate between people who value the good such as the moral dignity of people. Its not, i agree, a debate that should take place between a nihilist and somebody who is willing to believe in right and wrong. If you truly and honestly value the greater good, then you will believe in it absolutely, and you follow it to its necessary end, despite its philosophical implications or any sacrifices it might force you to make. You would not chop and change as it suited you, or redefine the meaning of good as it suited you.
Everything that is, is natural. To suggest otherwise is to say that certain things are above nature.
First of all, besides the fact of whether or not there is really such a thing as moral truth, saying that everything that exists is “
natural”, is not necessarily the same as saying that everything is “physical”. That is something you assume because you are use to hearing people speak of the physical in terms of the natural and the immaterial as supernatural. This is relatively true in terms of the greater to the lesser or contingent. But in reality that which is natural can be interpreted as that which is simply real as opposed to not real. One can speak of the natural state of things or the natural powers of things, and that might not have anything to do with that which is physical. In which case we can speak of different “
types of nature”; for instance God is an “
essential nature” or a “
transcendent personal nature”. The contents of nature is a different question. However when we use the term “natural” in terms of physical events, scientists mean the physical state of things but they also mean events that occur or take place with out intellectual interference. Such is evident when one says that this event occurred
naturally as opposed to “
intelligent design”; volition. The point is there are different ways in which we can use the term “natural”. It is not exclusive to the physical.
The very discussion of about whether people should have abortions or not, presumes that there is such a thing as right and wrong and more fundamentally “freewill”, and people have these discussions because peoples experiences and feelings tend to suggest this to them despite what you think the real origin of such feelings and experiences might be. Most people on both sides believe that a violation of a real good is taking place. They believe that when one is found raping a small child, that this act is wrong, and that their belief that such an act is wrong is a “true” belief. Whether you want to accept it or not, both opponents are displaying a “metaphysical belief” that implies explicitly the existence of a transcendent good, which takes human beings far beyond the mere physical interaction of atoms, or “nature” as you interpret it to be. Like you and other posters have implied, if there is no good, then there is only “nature”; but this debate an’t about the objectivity or universality of morality. Thats a debate for another thread.
Another straw-man defeated.
Everything I see seems to be governed by predictable laws of nature, abortion included.
No scientist has ever claimed or proven that according to the empirical evidence all our actions are governed by the predictable laws of nature, abortion included. Any scientist that says otherwise, is practicing metaphysics; not science. Any claim to an intellectual proof that has come at the result of a person whom believes himself to have acted freely and thinks freely in the pursuit of such a proof is not to be taken seriously. He is to be thought of as even more delusional if he thinks that he can convince a free thinker, or to even know that what he or she has is proof, since each one of his or her thoughts is supposedly dictated by predictable laws, and thus they cannot voluntarily check. So again, it seems you are blindly following the garbage residue of philosophical naturalism. This very debate assumes freewill and freethinking. My experience, and the experiences of many others, including those who freely choose to do science and engage in debates such as these, strongly implies the opposite to what you are claiming.
Another straw-man defeated.