If it's eugenics to choose, without coercion, certain traits for your child, then eugenics as a term is meaningless. Am i participating in eugenics when i don't have children with my sister? Am i doing eugenics when i take a test for cystic fibrosis and use that to decide to have children or not? The entire debate you are referring to centers around the use of force and coercion to control what others can do, and if they can reproduce or not. This is not that.