The best argument against Genetics vs Perseverance that I've seen is Randy Moss vs Jerry Rice. Moss is taller, faster, and just has greater natural gifts than Jerry Rice. Why don't we call Randy Moss the GOAT (Greatest of all Time)?

Perseverance. Rice had that over any natural athlete that came to every NFL camp he went to. Rice was there before everyone, weeks before, and left later. He'd win a superbowl, wait a week and then right back to training. He's the best there was because Genetics doesn't do everything, just watch GATTACA.

But why don't I shut up. Calvin Coolidge said it better than I can.

http://zenpencils.com/comic/40-calvin-coolidge-never-give-up/

*quality

Boosting this quality contribution up in the Hot Listing - declared quality by MrFisk.

I like the comic, but i don't like your comparison - the other guy (i don't know either of them) would have had to try less hard to be just as good. Effort gets you to your full potential, genetics raises the full potential.

I prefer to think about genetics this way - ok, i might not be the most attractive man in the world, nor the cleverest, nor the fastest swimmer, the nicest person, the most eloquent or the best on guitar. But i can be the cleverest most attractive, fastest swimming, nicest, eloquent guitar player - if you get the gist. I mean ok, your genetics might make you good looking, but my genetics make me smart, and vice versa. It takes all kinds of people to make life interesting and fun!

My genetics are totally broken.

I love GATTACA, phenomenal and valuable film.

Aside from that your argument is flawed, because it assumes that human will is not part of its genetics. While I completely agree with the message that the film GATTACA has, because any intelligent, responsible human should immediately recognize the downside of inequality and prejudice, human will, feelings and drive can be as linked to a person's genetics as much as their physical makeup.
This is why mental illness, dementia, autism and all the perceived negative emotional and behavioral disabilities are as readily passed between relatives and lineage as physical traits. People just haven't advanced to the point yet, or just haven't been paying attention enough, to realize and allow this into our collective realm of awareness.

Secret to a perfect body...?

RACISM

Seconding Artician. The brain evolved by natural selection, just like the rest of the body. It has built in biases and modules that vary genetically. Look at the wide variety of personalities in dog breeds, for example. In humans, the big five personality traits are estimated to be about 50% heritable based on twin studies.

Gattaca is a good movie and Brave New World is a good book, but they should not be taken as the ends of some slippery slope that any eugenic policy inevitably leads to. I think it's unfortunate that so much fear of eugenics is propagated by dystopian fictions like those. Eugenics can be done in a humane way that respects all individual rights. For instance:

1. a system of incentives for highly successful people to have more children or donate to sperm banks.

2. Universal single-payer healthcare, providing among other things free condoms and birth control pills to all, so that the use of contraception will not be so much inversely correlated with income as it has been from 1850 to the present when the poor often couldn't afford it (and it's a demonstrable fact that on average the poor tend to have lower intelligence partly due to genetics)

Even such modest, individual rights respecting policies, if phrased in terms of benefiting the gene pool, are political suicide because people are still afraid of imaginary slippery slopes leading to Hitler. Most of the US is still in denial of the implications of biological science, for reasons that speak well of them, but it's time to grow up and get over that habit of Godwinizing any attempt to improve the gene pool regardless of whether it infringes individual rights.

Or maybe lots of people people don't actually believe that, but are reluctant to say otherwise: https://www.youtube.com/watch?v=B0W9sSqeJnA

Counterpoint to Yogi's "never give up": http://freakonomics.com/2011/09/30/new-freakonomics-radio-podcast-the-upside-of-quitting/