A tumor is part of a person, and has a right to be fulfilled as part of that person, who may justly remove part of himself. A fetus is part of a person, and has the right to be fulfilled; the fetus is dependent upon his mother, who may not justly do away with the life of another.
Special pleading. Once again, you're relying on the assumption that the two should be treated differently instead of giving us a reason to do so.
A fetus is capable of reasoning.
No, it isn't. That's just ridiculous.
Whether it does or not is another matter. For example, you're capable of praying, whether you do or not does not take that capability away from you.
False analogy. There are many things I am capable of doing, but not necessarily going to do. The simple fact that fetuses (or vegetables, furniture, cadavers, etc.) also aren't doing those things does not make them capable of doing them.
Moreover, there is more than consent in this. Is it just to take the life of another, if they are currently unable to consent, for example, may I kill you in your sleep?
1 Legally, no, but that's a consequence of my status as a legal person; something a fetus does not have.
2 Inability to express consent ≠ no power of consent.
3 A fetus is not "the life of another".
By child is meant the offspring of the union of a man and a woman, and a fetus is as such a child.
Enough with the ipse dixit. The rest of us are well aware of what a child is, and a fetus is not any such thing, as has already been explained to you.
So it is still acceptable to kill a fetus, [...]
Yes, if performed legally by a licensed professional.
[...] a person or not?
Not.
A person has authority to deal with that which comprises his self, that is both proper and the order of things.
Then a woman has the authority to deal with her uterus, just as with any other part that comprises herself. This logically includes the authority to have invasive bodies removed from this part of her. Even if I were to agree with your blatant equivocation of fetuses and people, that just means you'd have to find ethical grounds for allowing a person to stay inside a woman's body without her consent, which probably isn't something you want to argue for.
1 Do you seriously believe that you're a combination of a part of your mother and a part of your father?
No, nor is that in any way relevant. Here's where you seem to be a little bit confused:
I am not the same as a fetus.
What
I am is the variable state of a dynamic electrochemical system.
The system consists of a part of each of my parents and also a bunch of other organic material that has been added through metabolic processes. To put it simply, I and my body are not the same thing, nor have the two always been in association.
All scients [sic.] recognize the presence of an autonamous yet dependent organism the moment of conception. Period.
No, in fact, they don't. Only a few scientists would be so ignorant of what autonomy means.
By the fact that it is circular reasoning, it's invalid.
It is not circular reasoning. You may as well declare the entire dictionary invalid, because each and every word is defined using words that are also defined using words. There is no word in existence that can be defined without the use of any words that can also be defined through it.
You put words in my mouth: "Happiness is the status of being happy, which is the quality of having happiness. Circular reasoning!"
No, I addressed the flaw in your rebuttal by providing an equally flawed example for comparison. In case you hadn't noticed, I tend to do that with a lot of your assertions.
"Abortion may be resorted to... it is a woman’s duty and right to have for herself the right to say when she shall and shall not have children" - Margaret Sanger, 1932.
Nice flagrant quotemine. Do you want
the link again?
This, sir, is the basis of Western morality, [...]
No, it isn't. Western morality has a significantly more solid basis than what is and isn't fulfilling, so what you're telling me is that your definition of good (and, consequently evil) is not only irrelevant and useless to your argument, but also just plain wrong.