I’m not hear to debate anyone, but if you think it is ok to kill a currently living being to resurrect a dead being, then you are fucked in the head. Tuvok and Neelix died painlessly and unaware in an accident. Tuvix was murdered, and was made fully aware of their fate beforehand, to the point where they even begged to be spared.
It’s not an equation to be worked out. It simply boils down to respecting the wishes of a currently living and conscious being. Otherwise anyone’s life could be forfeit based purely on some arbitrary valuation of what that life is worth. Why don’t we just harvest your organs and give them to people we deem more useful, ya know?