What's better: allowing people to die from preventable diseases to allow us to evolve beyond susceptibility to them Or Preventing them and counting on technological means to be constantly available to artificially prevent them?
Yeah, in general the technosphere exists in large part to protect us from natural selection pressures/natural consequences which is highly dysgenic. You could always treat the people but not allow them to reproduce which is a middle ground. Eugenics is nice and good.