My point, which I made in an oblique and possibly rude way, is that there's considerably more to evolution than fatal negative selection, the culling of the weak/diseased, etc. Sometimes that kind of selection is the first step. But the second step, in organisms that reproduce sexually, is finding someone to mate with you. We don't do that at random, so that's a selective - and evolutionary - influence.
I take your point that mating is not random from an individual perspective. However what people find attractive in a sexual partner can be seen as being random therefore alleles will not be selected out of a large breeding population. And if there is no selection there is no evolution.
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