A tinkertoy philosophy.
I understand your original point, and didn't think it necessary to emphasize it, but of course you are free to add the emphasis. In my estimation, though, consenting to something does not make it right, and I can think of nothing worse than a gladiator fight in a murderous, blood-soaked ring as the prime example of how horrid such a mind-set is. What is there to argue over when the value of human life is considered cheaper than the will of the person to destroy it? Or the will of the spectator to sit by and allow it? The Bill of Rights really becomes a joke at that point. The Preamble with its lofty ideals of equality before the law and unalienable rights is just toilet paper when people are allowed to abrogate their own right to life with impunity, and of course, while other people get rich off of it or get their boredom temporarily alleviated thereby.
Consenting to sin is not an excuse to allow it. Sitting by and allowing other people to destroy themselves just as long as *I* don't have to pay a dime for their wounds or burials really causes the whole idea of human rights to teeter at the brink, as there are thieves, rapists, and murderers who likewise think other people's lives are valueless except as entertainment, and that mind-set cannot co-exist with human rights. You champion the alleged rights of people to use meth and die only at the risk of your own right to vote, to own guns, to a fair and speedy trial, or to worship and speak as you wish.