this is an odd red herring invented by USAmerican analysts that, as far as I can see, simply tries to use a completely meaningless variation in word formation to found a doctrine that would otherwise be unacceptable.
"Un-" and "in-" mean exactly the same thing. So "unalienable" and "inalienable" cannot mean different things. There isn't even any semantic way that "inalienable" could possibly mean what you say it means:
Unalienable rights cannot be taken away, ever, nor can they be given away/surrendered by the individual.
Inalienable rights cannot be taken away either, but can be surrendered by the individual overtly or by implication.The Universal Declaration of Human Rights starts out:
Whereas recognition of the inherent dignity and of the equal and inalienable rights of all members of the human family is the foundation of freedom, justice and peace in the world, ...
and it really just doesn't mean "can be given up". And I doubt that Eleanor Roosevelt would have said it does.
Criminals do not alienate their right to freedom by committing crimes.
Deprivation of freedom for committing crimes is a violation of the right to freedom -- a violation that is justified according to the standards adopted by the particular society.
Your argument amounts to saying the right itself is defined by ordinary law: if a particular statute says that a person may be sentenced to death for a particular crime, then the person alienates that right by committing that act. And yet over the border of the jurisdiction five miles away, that wouldn't be the case.
How can one person alienate their right to life by committing a crime, and another person not alienate their right to life by committing the same crime? Does the alienability of rights depend on location, or even time?
Or I can go out and commit a heinous crime, surrendering my freedom to a concrete cell via due process.That's a nonsense, quite simply. It is not the crime that results in the deprivation of liberty; it is the decision of the court of competent jurisdiction, having applied due process etc., that does that. That's what your constitution is all about.
People sentenced to incarceration have neither given up their right to liberty nor had it taken away. They have been denied certain exercises of it for a certain period of time.
If the right to liberty is alienable, I could sell myself into slavery tomorrow morning. And yet by universal consensus, a person simply may not sell themself into slavery. Because the right to liberty is inalienable: I may not alienate that right, I may neither strip myself of it nor be stripped of it.
For instance, I can, if I feel my mind is no longer competent (say with onset of Altzheimers) I can surrender power of attorney and other control of my finances, and even my physical location, to another person.And yet oddly, you have not actually given up your right to the property. If you had, no one would need a power of attorney to deal with it. (This is simply not the meaning of the "right not to be deprived of property without due process" in your constitution anyway. Anyone may alienate their own property. Just as anyone may lock themself in a closet, or kill themself.)
The fact that someone else may be appointed, either by the person or by an authority, to exercise a right on someone's behalf does not remotely mean that the person has "surrendered" that right. The right is simply being exercised on their behalf.
It may not be exercised against their interests -- parents may send children to their room as punishment, but they may not lock them in closets for a year. The person with power of attorney over your property may not burn it down; the person with power of attorney over your person may not deny you medical treatment. The reason is precisely that you still have those rights. If you didn't have them, the person with the power of attorney could do as they liked.
I'm afraid that I just find this whole effort incomprehensible and unmitigated bumph.
But then, it comes to us from all those many years ago, when not only were people just starting to work out these ideas, but they also had not the slightest idea that anybody all these many years later would decide that their small efforts were writ in stone. I dunno, maybe they were that arrogant. I just doubt their minds were that closed.