However, this doesn't mean that we can't consider a situation where reliable predictive genomics does exist - a Gattaca-type society, for those who have seen the film - and the consequent possibility for discrimination based on your genes. This was the actual subject of my essay, which concluded:
"Even if in the future the ability to predict the more common, multifactorial diseases does become a reality, we all posses dozens of glitches in our genomes that probably predispose us to a great number of diseases and it will again be difficult to discriminate between different people. Furthermore, if we do reach a stage where common diseases are easily predictable, surely the level of understanding that we would then hold would lead to the development of effective treatments, such as gene therapy, and the abolition of any genetic underclass."
So if condition one is met, condition two should follow and, hopefully, lead to genetic equality. We'll see how the future pans out.
Read the essay here.