Eugenics is the theory that some people should not have children because they are inherently defective. They have bad genetics. It assumes that we have the wisdom to breed humans for desired traits. Out of this great wisdom we will force some people to never have children
The program in question assumes that some people engaged in behavior that is demonstrably destructive to themselves and those around them are less likely to be good parents. Are you seriously arguing that this is not the case?
Therefore it’s a good idea to encourage, NOT FORCE, them to choose not to become parents.
If and when they clean up their act, some of these methods are reversible and they can hopefully become good parents.
Frankly, I see nothing different in this from common European practice of encouraging people to become parents by monetary incentive. This is just the flip side.