Re: Janeway's Decision to Kill Tuvix
since Tuvix didn't want to sacrifice his life, he was not worth of life.
Not true. Every Starfleet officer is worthy of life, but they may still be ordered to sacrifice themselves in the course of their duties. That doesn't make them worthless, it simply means they're doing their duty.
"If the world was perfect, it wouldn't be." - Yogi Berra