Username checks out.  You might have been joking, but there is a real mental disconnect where people in the one hand see medicine in the real world keep people healthy and alive for longer, and on the other hand, when rejuvenation/longevity is mentioned, they resort to the cultural brainwashing that is seen in movies: that all forms of life extension ultimately come from stealing the life of others. 
This is nonsense of course, life is not a zero-sum game. Neither is there a real law of equivalent exchange like in Fullmetal Alchemist.  But people are wired and train to think like that. 

Overcoming that mindset will take many years of refuting faulty arguments and showing real-world progress, just as we are managing to do with the mental resistance to bitcoin acceptance.

PS: I liked the stuff you said about the pursuit of happiness.