What is eliminating the survival instincts? What is responsible for this?

I have not had any real idea on how to approach them [instincts]. My reason for this being that if we are born with instincts intact right from our first moment and, given that we are a clean slate so to speak, then, said instincts must be encoded in the DNA ... or what? And how does one delete a part of one’s DNA (personally speaking my gene splicing skills leave a lot to be desired). I still don’t understand how one is to undo the deepest layers of instinct.

Please, can you extend your meaning about ‘and thus promote a physical solution (extinction of instinctual ‘being’ itself)’. Please, what is your approximation, what do you mean by ‘a physical solution (extinction of instinctual ‘being’ itself) derived from my personal experience’. Feel free to express as you like, this is to much serious for me, ‘agree or disagree’ will be only my business but I will thanks a lot any personal approach on this point.