[mrrrgn]

I absolutely don't disagree with you. Personality traits and aptitudes are strongly inherited, along with some genetic randomness and some environmental conditioning. What I don't like is full on genetic determinism. Human beings transmit both genes AND memes for a reason. As sentient beings we inhabit two universes. The one made of atoms and the one made of thought and ideas.

Compare, say, humans and ants.

Ants seem to have a ROM of sorts: software embedded in genes and immutable within a single organism's lifetime. They only inhabit the world of atoms.

Humans have a ROM to cover basic functions but also writable memory. We can change our behaviors within a single lifetime and then if that wasn't cool enough we can also TRANSMIT those behaviors without genes via the world of thought and ideas (language).

We ought to never forget that. Fatalism binds us too strongly to the physical world. It's a bad path that leads to nihilism (struggle against nature is futile), cruelty (everyone deserves their lot in life since if they were capable of more they would have achieved it), and despair (self-actualization is impossible, I am an automaton).