That's where the meme is slanderous, we don't hate disabled people, we simply accept the fact they are likely to die. The meme could also be at those who support negative eugenics. Most of us find it abhorrent, and opt instead for positive eugenics = creating life not destroying
Positive eugenics is essentially a return to nature, to reproduce with who fits us best to bear a healthy child, it doesn't mean killing disabled people or weak children.