Applying this to humans would mean if we were currently inbreeding slaves with Down syndrome to produce children with the same condition for entertainment purposes, that we should stop doing that. I'd agree.
Edit: Shenglong, just saw your response under this post's sibling. The point is not that the author argues for the human-led removal of unnecessary traits. It's that we should not spread misinformation and continue to go out of our way to create those traits. In the specific case of the white tiger, such behavior results in really harmful genetic defects that could result in the extinction of tigers (http://en.wikipedia.org/wiki/White_tiger#Genetic_defects).
Edit: Shenglong, just saw your response under this post's sibling. The point is not that the author argues for the human-led removal of unnecessary traits. It's that we should not spread misinformation and continue to go out of our way to create those traits. In the specific case of the white tiger, such behavior results in really harmful genetic defects that could result in the extinction of tigers (http://en.wikipedia.org/wiki/White_tiger#Genetic_defects).