@croydon - Genetic analysis in its most primitive form has been done for generations. Just looking at cattle and realizing that a big one will produce big calves is genetic analysis. We've just developed more sophisticated techniques. I don't think eugenics is a great idea either, but I don't know where we can draw the line.
It's all very well to say that people simply shouldn't analyse themselves but at what point do you stop them? If they know there's a bad gene in the family, like Huntington's for example, they can decide not to have biological children and spare another generation from that kind of terrible genetic diversity.
This is a bird that's already flown. The only way forward is to develop new ethics that will incorporate this technology in a way that won't end up being a step back for humanity, but, rather a step forward.