[FollowingTheDao]

>> You’re just switching one set of risk genes for another. > I think... that's what GP was saying?

If you are switching one low survival gene for another there is no net benefit.

[lazyasciiart]

You're begging the question, They asked is there some unnoticed survival benefit.

[mark-r]

It depends very much on the likelihood that the gene causes a disorder, and the deadliness of the disorder. Those two outcomes could be vastly different.