I'm always disappointed in cherry picking. On the other hand, without knowing anything else about that extended piece, it looks like the author is whitewashing

I'm always disappointed in cherry picking. On the other hand, without knowing anything else about that extended piece, it looks like the author is whitewashing and trying to brush something unpleasant about Fisher under the rug. Genes aren't "deficient mentally" and it's hard to read that quote any other way than as advocating eugenics. Reading the extended text makes me wonder about the whole story, but doesn't really convince me Fisher wasn't in favor of eugenics and all that entails. I wouldn't say I'm skeptical, but it would take more than that.