“keep themselves from what is sacrificed to idols as well as from blood and what is strangled and from fornication.” Acts 21:25
“keep abstaining from things sacrificed to idols and from blood and from things strangled and from fornication. If you carefully keep yourselves from these things, you will prosper. Good health to you!” Acts 15:29
“you must not eat the blood of any sort of flesh, because the soul of every sort of flesh is its blood. Leviticus 17:14
“has esteemed as of ordinary value the blood of the covenant by which he was sanctified.” Hebrews 10:29
The scientific community would perceive this as a warped philosophy for three reasons:
1. It is possible to screen blood and eliminate diseases and many health risks.
2. Biblical hermeneutics, the study of interpretation concerning the books of the Bible cannot always be assessed strictly through linguistics. Not according to the Bible anyway. Linguistics is the scientific study of human language. The “words of Jesus in red” may come to mind and many scriptures are fairly straightforward, but the Bible introduces the idea that “holy spirit” is required for a definitive understanding of the Bible.
We have not received the spirit of the world but the spirit which is from God, that we may understand what God has freely given us. 1 Corinthians 2:12
But the helper, the holy spirit, which the Father will send in my name, that one will teach you all things and bring back to your minds all the things I told you. John 14:26
http://bible.org/article/holy-spirit-and-hermeneutics: This brief essay is a preliminary attempt at articulating the role of the holy spirit in relation to the interpretation of scripture.
3. The idea “that the soul of every sort of flesh is its blood,” the “sanctity” of blood in relation to formal injunctions regarding blood in the Bible. A concept similar to the sanctity of marriage in relation to fornication, a concept independent of health considerations.
Reasons two and three are concepts that refer to a transcendent or transcendental power or deity. Concepts relative to divinity vary significantly depending on which god is being discussed, but it all hinges on the existence of a supernatural realm, a realm beyond the natural world we perceive with our senses and can study by rational scientific methods.
Similar logic can be applied to adherents of the Qu'ran, that what is stated is subjective.
"Fight in the cause of Allah those who fight you, but do not transgress limits; for Allah loves not transgressors." Qur'an, Chapter 2, verse 190.
http://www.islam-usa.com/index.php?option=com_content&view=article&id=225&Itemid=205
Inner Jihad-striving towards harmony
http://www.aynrand.org/site/News2?page=NewsArticle&id=18199
Claims that jihad is an "inner struggle" are best seen either as the apologetics of those who do not want to face the fact that jihad means war, or who wish to cover up this fact in order to achieve the ends of Islamic rule. What the claimants call an "inner jihad" is a process of internal intellectual evasion, in which facts and conclusions contrary to support for Islam are suppressed. The outward political manifestations of such deception are censorship and propaganda, which are used to further Islamic rule. Islamic totalitarianism remains an active, and dangerous, force in the world, which must be confronted intellectually and defeated militarily.
There are some in the medical community that may insert scriptural and historical religious deliberation into their proposals when confronting Jehovah's Witnesses:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1377670/
Bioethics of the refusal of blood by Jehovah's Witnesses: Part 1. Should bioethical deliberation consider dissidents' views?
The basics of modern biology can be encompassed within five unifying principles: cell theory, evolution, genetics, homeostasis, and energy. Evolution (naturalism) as a central organizing concept in biology is that life changes and develops through evolution, and that all life-forms known have a common origin.
I haven't communicated with medical professionals about this, but do you think the conclusion of most in the scientific community, would be that Jehovah's Witnesses blood doctrine is based on idealism and a scriptural debate regarding the matter would be pointless? Not to mention, dissidents are not organized on concepts in biology accepted in the medical community.