A weaker gene pool puts a huge strain on our medical systems though.

For examples: the gut microbiome directly impact our health, diets influence gut microbiome, junk food has a negative impact on it, it is mostly inherited from your parents

Which means in just a few generations you can end up with massive changes. Diabetes, obesity, cardio vascular disease, cancer, &c.

I think we shouldn't have blind faith in tech, we can fix broken bones and a few other neat things but we're far from having the right tools to work on these kind of problems on a global scale, especially since we usually detect the changes after they're too late to properly revert them.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3983973/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5385025/

https://www.popsci.com/holiday-junk-food-gut-microbiome-fibe...

https://www.discovermagazine.com/planet-earth/most-of-the-mi...