Brings up the point of our continued evolution towards weaker bodies - the more cures we have for asthma, children's diabetes, etc., the more the people that have those ailments reproduce, and the more people there are with those ailments.
BTW, site shows http 403.
Humans have long been evolving in response to patterns of human behavior and technology. We're already partly artificial, so why not make it the artificiality we want, rather than the one we got by accident?
Try proxy server. Any anonymous US proxy works for me. They seem to have crazy IP (spam?) filters that block many legitimate providers, including mine.
Evolution is no more than genetic drift within a population through reproduction and variation shaped by selective pressure. What you describe as gene therapy could be seen as a selective pressure. But there are many selective pressures on large populations of humans and these selective pressure vary from one set to another. I do agree that the dynamics of selective pressures has changed for humans thanks to modern medicine. But I contest it still applies.