Perhaps, but I can still believe it's unethical while maintaining that it's up to other people to reach their own conclusion. You'll never get 100% consensus on ethical questions, and I'm perfectly happy to concede that not everyone is going to share my personal views on what is ethical and what is not.
Left to me, then yes, there would be no transplant or transfusion, but I don't think I could possibly justify that to the relatives of people who die for want of one, hence why I have no wish to impose my view upon other people who disagree and maintain that T&T is perfectly ethically sound.
I'm still at liberty to make choices that affect me, and me only though, and since I don't accept the ethicality of transfusion and transplant I refuse to participate. I don't have to justify that to myself, so I'm perfectly comfortable with my choice.
Do I believe people who think otherwise are wrong and abusing an ethically questionable practice? Well... yes quite frankly, but only from the perspective that I've already outlined, namely that I don't see it as medicine's job to circumvent mortality and artificially extend human lifespan, which seems to be the logical endpoint of our crusade against any and all illness.
Suppose humanity does develop cures for all known cancers. Suppose humanity does develop gene therapy that cures all known inherited conditions. Suppose we develop cures for all the diseases that blight the developing world associated with penury, insanitary conditions, poor diet etc. Suppose we develop triage that prevents all premature death due to accident and injury. What then?
We're effectively immortal at that point, and all we're doing is exacerbating all the problems caused by overpopulation and aged population. Unless we simply stop producing more humans, which isn't going to happen, we're just setting ourselves up for a whole host of different, but nonetheless catastrophic issues.
I have absolutely no concerns about death, and as such, feel no need to circumvent it in any way. When it comes, it comes, and if it looks like it's going to be particularly uncomfortable then fortunately I have the means to take a trip to Switzerland. I just wish our own politicians weren't so cowardly and I had the option to do the same in the UK, but perhaps by the time it comes to it I might, fingers crossed. There is though, clearly strong opposition to assisted dying from people who consider it unethical. All I ask is that they exercise their right not to use it without prohibiting me from using it, just like I do with my personal views on T&T.