Here is what I mean:
Suppose that two men are born, with identical brains, but very different bodies. Both of them have a single desire: to be the fastest sprinter in the world.
Man A)
- Predominantly fast-twitch muscle fiber composition
- Possesses ACTN3 RX genotype [0]
- Testosterone, Growth Hormone, IGF-1 levels at the very upper end of reference range
Man B)
- Predominantly slow-twitch muscle fiber composition
- Possesses ACTN3 XX genotype
- Clinically deficient values of Testosterone, Growth Hormone, IGF-1. Prone to musculoskeletal injuries, possibly connective tissue disorders.
If these two men live an identical life, and put the same amount of effort into training, the second man still has no hope of making it to the Olympics.
Even doping would only be able to correct for hormonal deficiencies, not the genome-level disadvantages for power performance compared to the other athlete.
A truly "fair" sport would pit competitors against each other who had near-identical genetic and physical traits.
The Olympics is just watching the people who won genetic lotteries.