Because after 500,000 to 1,000,000 years or more of human "Mongrelized" gene evolution people are getting involved but really have no idea of both the long term or the short term consequences of what they are doing which are literally almost "Infinite" both good and bad both.
For example, 80% to 90% of all people on earth have the literal "God" Gene which makes them likely want to believe in God or a higher power or a higher power than themselves. What if Scientists who tend mostly to be atheists or agnostics think "Well. I don't like people who believe in God so I think I will secretly remove the "God Gene" from as many people (Embryos) as possible. And what if you upset the balance? What happens then?
I presently believe the 10% to 20% of people who Don't have the God gene were put here so that we don't get so sucked into Cults run by secretly evil people. So, those who don't have the God gene might kill those cult leaders BEFORE they extinct the human race. Sort of like to prevent what jim Jones did by giving poison laced Kool AID to a couple hundred people and they all died including him in his cult.
So, is the God gene a good thing or a bad thing? I think it's a good thing. But, you might have a different opinion which you are entitled to. But, if one of us starts changing people from believing in God to not believing in God on a whim by removing the "God Gene" then I think that's just fucked up and will "Fuck up" the whole human race and it will never be the same.
Now, you can say "Oh. We are just removing heart problems right now!" Tomorrow it will be "We only want a boy or girl with Blue eyes and blonde hair" and then it will be something else won't it?
By the Way do you remember Hitler and his blonde hair, white skin and blue eyes breeding program?
And all that Aryan Race stuff now associated with Skin Heads and Nazis?
begin quote from:
www.nydailynews.com/life.../u-s-scientists-edit-disease-human-embryos-article-1.33788...3 hours ago - In the first successful test of a controversial technique, scientists in a new study were able to edit out heart disease-linked genes from fertilized ...
www.cnn.com/2017/08/02/health/crispr-human-embryos-gene-editing.../index.html6 hours ago - Report: Scientists edit human embryos for first time in US ... In a lab dish, the researchersused CRISPR, a gene-editing technique, to remove ...
https://www.nytimes.com/2017/08/02/science/gene-editing-human-embryos.html2 hours ago - Researchers have found a way to reliably remove disease-causing ... human embryos can repair common and serious disease-causing gene .... officials in the United States or another country will allow regulated clinical trials.