Currently in most of the Western world we have very stringent standards that have to be met in order to adopt a child (and quite rightly too in my view). But in order to conceive a child naturally? Nothing, nada, zilch. Full blown neo-nazi? Meth addict? Huge track record of violence? Rapist? Paedophile? All of the above? Find a partner of the opposite sex and you’re good to go! This is a massive inconsistency that I can see we will have to face up to sooner or later, maybe not to the extent you propose, but some sort of minimum standard needs to be put in place for being able to reproduce, for the sake of those children that will otherwise be brought up in horrific, abusive nightmare environments if nothing else.