I’m currently paying for a test suite during my IVF process that will also test for things like ADHD risk, diabetes risk, and low IQ risk[1]. I think soon it will be basically immoral to not do these type of screenings and it should be accelerated.
[1] First learned about this stuff here https://www.lesswrong.com/posts/yT22RcWrxZcXyGjsA/how-to-hav...
[1] https://guides.orchidhealth.com/post/embryo-screening-and-he...
That said, other questions arise like: what happens to the broader population when we start manually selecting for certain traits? It seems like unintended consequences could be lurking as well.
The way I see this, suffering is part of life, and isn't something we can entirely eliminate. When suffering happens, there are better and worse ways to handle it, and good can come from it. But most of cultural/societal evolution is focused on finding ways to reduce or avoid it, and that's a good thing. Obvious examples like improving food security and reducing the impact of previously debilitating illnesses come to mind. I personally grew up not knowing where the next meal would come from some days. That early experience influenced the person I am today. Poverty/starvation are still situations we should continue to try to solve.
So the question really becomes: what differentiates the standard ways we avoid unnecessary suffering from preemptive options that are on the horizon, if anything? i.e. if you have a bad knee, it makes sense to see someone and fix it. Given the choice, there's no reason to choose immobility. If an embryo has a high chance of developing lifelong congenital issues and a future parent has the option to choose an embryo that is significantly less likely to suffer the same fate, why not make that choice, especially if the affliction leads to high child mortality rates?
So yes, I think there is a presupposition that suffering should be avoided when possible (it is often not possible). And I think most of the world runs on this presupposition. This should not be conflated with believing that suffering is inherently "bad", nor should the possibility of positive outcomes lead one to believe that suffering is "good".