Except that men being men, once a certain type of man tastes power he is corrupted and will inflict his control over those who simply wish to exist in peace. Metaphorically, when Cain felt anger because his brother showed a more generous nature, he picked up a weapon and bashed his brother's brains out. Thus began the saga of man.
Sadly, yes. Which is why we have had to fight to defend those "unalienable rights" ever since: to live, to live according to our own will, and to pursue our own well-being and happiness.
And it's those same "decedents of Cain" living among us, today, that are still trying to usurp our unalienable rights, so as to impose their will on us, and on everyone and everything … so as to become like gods, themselves.
This was mankind's original sin, and it is still the sin hidden within all the others.