Organs can now be grown!

[Drasca]

Frequently we also call changes that make a species more fit evolution. This is also considered a correct definition
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If you do not consider ability to manipulate environment an extension of evolution, then overwhelming success might disagree with you.

If you for instance sugically repair the heart or remove the cancer growth it was still a lethal genotype by definition.

Survival is the only definition that matters, and survival is defined the greatest variety to adapt to the broadest of adversity. Once you start purposefully letting people die you could save, you start shrinking the pool. Who knows? Maybe the genes for cancer will be pivotal to our survival in the future. More realistically, there could've been other traits that we'd lose.

So, we might end up cyborgs, but that is still survival. Although at this point, many of us may alread qualify, having been either sewn up like frankensteins with plastics, bones replaced with metals and silicone implanted in esthetically pleasing areas.