Can you Morally Clean a Gene Pool?
This is not a biology/genetics question. In all reality we would want to keep as many traits as possible to encourage genetic diversity. However, say there was a gene that was in no way positive. Some kind of life threatening response to a material for instance. We live in a society where we won't just let people die, so it would not be naturally removed from our population. Let's also not consider genocide please.
So with this in mind, can you ethically remove the gene from the world (not including physical gene extraction and replacement, some weird sci-fi stuff)? Does the human right to happiness and the natural desire to bear children outweigh the harm done to later generations? Can you expect a person to sacrifice an entire aspect of life for the common good?
To extend this further, should people who are at risk to have autistic/retarded children be allowed to? This pertains to significantly older mothers, those predisposed genetically by siblings, who had one before, etc. This is a bit further of a jump, because this a real situation that occurs. It's not a clean cut hypothetical.