It's what they call libertarianism.
They apply it to government. Now they apply it to medicine. Let the weak die and the strong thrive.
It's actually very similar to the "Darwinian" brutallism that existed in Germany prior to Hitler. [I put Darwinian in speech marks because Darwin didn't seek to justify his observations as a political philosophy, nor is Darwin's evolution only brutal].
Whereas liberalism focusses particularly on vulnerability and seeks to soften the harshness of nature and fortune.
I prefer liberal medicine (ie one that seeks to cure the sick) in every way!