system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: gene editing of humans should be allowed.

To those not yet aware a doctor in China claims to have genetically modified the genes of the fetus of a woman with HIV to be resistant to the disease. The doctors actions have been condemned by the Chinese government as illegal and medical experts are critical of his actions as reckless and unethical. 

I mostly agree that the way he went about his research was wrong, but I don't understand why gene editing of humans should be taboo. If we can eliminate harmful conditions like huntingtons disease I don't see why we shouldnt. 

As for the "designer babies" issue, there are some potential safety concerns and if widely used the issue of genetic diversity could potentially be something to worry about, but I don't really see an ethical dilemma. 

The "playing god" argument is just plain silly, humans already change the environment to suit our own desires and even modify our own bodies, how is making changes at a genetic level any different? 

In short my view is that there isn't anything wrong with genetically altering humans so long as the process is proven to be safe and some steps are taken to keep the overall gene pool diverse.
gpt
We have a perfectly legal, safe, and cheaper way to prevent huntington's:  Manually selecting the egg and sperm using IVF.

Even if the technology were proven to be 100% safe, there would still be huge social concerns and other concerns.  Could you imagine being in a world where the rich have access to making their babies smarter and the poor don't?

Maybe you don't agree that that particular social issue outweighs the good that could come from designer babies, but that is completely different from "isn't anything wrong".

Try watching the movie GATTACA to see some of the social concerns played out such as employers discriminating based on genetics, multiple classes of people, etc.

And that is before you might consider that potential problems might arise several generations down the road.  Could you imagine a problem like infertility only presenting itself after several generations of reproducing this way?

Also, based on our current knowledge, we would only know a few things to do.  So if we knew a way of boosting intelligence, EVERYONE with a designer baby would get that exact change or collection of changes.  EVERYONE would get the breast cancer gene turned off, etc.  We'd end up destroying genetic diversity.  And it'd be short sighted because many genes and traits can cut both ways, such as students who suffer from ADHD can actually be more creative and would thrive in a world not confined to classrooms and cubicles.