Is Dawkins wrong about eugenics?

Richard Dawkins writes:

Quote:

It’s one thing to deplore eugenics on ideological, political, moral grounds. It’s quite another to conclude that it wouldn’t work in practice. Of course it would. It works for cows, horses, pigs, dogs & roses. Why on earth wouldn’t it work for humans? Facts ignore ideology.

Here is the original tweet:
https://twitter.com/RichardDawkins/s...43686953664512