It's interesting how there's such a wide culture gap between China and the west. We spend so much time worrying ourselves sick with every possible downside, debating in circles and not getting anywhere, while China is bravely pushing ahead with a bet that's 90% likely to pay off.
The arguments in the paragraph above are a perfect example. We should continue giving birth to babies with genetic diseases, because this will supposedly make the current patients feel better? We should continue subjecting our children to illnesses, because "eugenics"? How can people seriously believe in these things? Getting rid of disease is good. Polio eradication was a great step forward for humanity, and the sooner we can replicate this success with other diseases, the better.
There was only one good argument raised, which is ensuring egalitarian accessibility to such procedures. And I'm sure this is a solvable problem. If we can afford universal healthcare, we can afford universal genetic screening.
When I look at the can-do attitude in places like China, and the endless cynicism and paralysis-by-analysis in more developed countries, Jeff Bezos' quote comes to mind. It seems clear that we've become a Day-2 country, while China is still very much a Day-1 country.