This is not really related the content, but I do want to mention that as someone with ADHD (among other things), I have trouble processing dense language like this, even if I look up all the words I don't know. I know that words like "eugenics" can't be replaced, since they're central to the message and very complicated (and explained in depth earlier on), but I think plain language can be really important when writing about disability history, as it allows for more disabled people to engage with our own stories.