system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: I don’t get why is it unethical to genetically modify your baby

If you see the news recently, in China the first genetically modified embryo was created and a lot of scientist and governments were against it due to ethically reason, even though the only gene they modified was a very specific DNA that could prevent the baby from having HIV (cmiiw). 

Now I do understand the part where it is unethical to do so because we do not know the extent of removing that very specific gene to the baby’s future. For all we know the embryo could be deformed when he/she is born. I agree on having extensive research on that part before actually doing it. What I don’t agree is the fact that it is unethical to edit your baby’s gene so that you could have a better offspring. I mean let’s face it, there’s so many benefit on being able to edit your gene. For example if you and your SO are short, might as well make your baby grew taller than you. Your family have a history of heart diseases? Well let’s change that! Before we judge someone from their inside, our first impression of someone would be from their physical appearance and if we can somehow make that into an even plane in the foreseeable future than why the fuck not.

Ofcourse this is an open conversation. I would like to know your take on this issue.
gpt
>  Your family have a history of heart diseases? Well let’s change that!

Only the most hardcore would have a problem with *this* type of modification. Like, if you could eradicate Down's Syndrome, most would say that's a good thing. Of course some would protest, but by and large it would be seen as a net positive. 

> For example if you and your SO are short, might as well make your baby grew taller than you. 

This is where you'll get the most resistance. There are some things like determining eye color that might be considered okay, but the problem will be when people start editing gender or other physical attributes. What happens in countries where having a girl is considered a failure?

There is a probability, not possibility, that genetically modifying children will lead to eugenics somewhere. That's where people get the heebie jeebies about it.