They do however show signs of intelligent behavior, indicating something 'beyond' the brain as the inception (or source) of their willfulness (since they have no brain): cell intelligence, amoeba.
This is sometimes called the "will to live" "want to live" "fecundity principle" or "life principle". For Lurkers interested in more: Can the Monist view account for What is Life?
A. Einstein was quite astonished by the amoeba 'spore stalks' he was shown at Princeton. If there is no brain with an alive organism, how is it that they exhibit 'will'? [Remember the'twisted epistle' I sent to you once, regarding space/time/life force/spirit and the continuum mixes of variabilities? How odd that we are so close to discussing those ntions here!]
As a microbiologist, I can tell you that your Amoeba paper is real weak (and that's being charitable). Perhaps you should try to find some more rigorous evidence or revamp your theory.
DG - existence is objective, not subjective. It does not require us to make it so. If it did and all men were to die tomorrow, then God would cease to exist. Somehow, I don't think most Freepers would buy this.
This moral relativism is causing big problems in today's society.