Exactly!!For any species, adverse circumstances cause a culling of the weak and preserve the quality of the species as a whole. Now modern life is pampering useless slobs who would have been culled in ages past. So we have people with severe allergies or gluten intolerance, who are basically "bubble boys", and if they are not culled, then they waste society's resources and degrade the species. They should not be suffered to exist and procreate.
From a strictly biological standpoint it makes NO sense whatsoever to allow these things to live much less procreate and ultimately poison the gene pool.
Idiots thing that we're doing them a favor by coddling them, but the reality is that if they were simply destroyed at birth (humanely of course) society would be FAR better off.
That's not being mean, that's not being callous, that's just a fact that NO one can refute.