Yes, using Crispr Cas to edit out genetic diseases is probably a good idea, but no need to call it eugenics - that word comes with much baggage and is unnecessarily associated with selecting who may get children with whom - quite the opposite of what Crispr Cas can do
The fool hath said in his heart, There is a God. They are corrupt, they have done abominable works, there is none that doeth good.
Psalm 14, KJV revised edition