Ribozyme! You truth-seeker, you. I am pleased; your post has made my day. That quiet little voice in you, you know, the one that a rigorous scientific mind should be able to drown out, is alive and well.
I have said these very words, many years ago. I wanted the truth, not an anxiety-allaying crutch, and certainly not one that rendered my intellectual sensibilities superfluous. I wanted the self-assurance, the peace, that would only be possible by knowing the truth. To my surprise, I found both. You will too. Work at your own pace, test it all, reason through it, retain what is true. The other posters here have good ideas. Here’s another – Read the first couple chapters of Mere Christianity by CS Lewis. He wrote this as a collection of radio speeches during the time of the very real threat of a pro-eugenics juggernaut (WWII Germany). Don’t be swayed by the title, he doesn’t preach at all. His reasoning may very well resonate with you and the problems you are having with eugenics, and he may be a very good guide for you through this quandry.
Peace, Tim